First impressions of IGO-S RDA Rebuildable Dripping Atomizer

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svg1234

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Mar 7, 2014
53
32
Montreal
Being a relative newbie, this is my first RDA.

I wanted something small to fit on my itaste vv. I had read a lot of good things about the IGO-S. Received it today. To provide some perspective on my review...I started with the Innokin itaste v3 kit w/ the iclear16's. Next I got a mini protank 2 just a short while ago. Built some coils. Though I find it a pita, it's vaping beautifully w/ the latest coils I've built. But I also wanted something that would make it easy to switch between juices, sample juices, and just take a few hits off of a different flavour for a break from my all-day vape juice.

It came packaged in a small, cheap cardboard box. At first I thought maybe I had been shipped a clone, but a bit of searching turned up the same package. It does not come pre-wired (good) and includes wire and wick to make a coil and one spare o-ring and one spare post screw.

My first impression after taking it out of the package was: man, is this thing small! Yeah, I knew it would be small, but was still a bit surprised at just how tiny this little sucker is. The pictures and videos I saw before ordering made it seem bigger. For example, that lip that runs around the deck (which I like very much) is really tiny. In the photos, it looked more substantial. I've been rebuilding lots of heads for the mpt2 as I hone my coil-making skills, so I've already become accustomed to building in small spaces. But because the two posts are positioned in the center and near the outer edge of the deck, the distance between the two posts is about the same as the mpt2. I didn't realize that the outer post would be so close to the edge. (I should have - 14mm).

The 510 connector is sealed (no leaking onto the battery). On my battery the connection is just "ok". It doesn't feel right. It doesn't sit flush or level when tightened all the way down. I should have ordered a beauty ring with it to make it look better on my battery. There is one tiny airhole in the cap that you can position as you like - but no airflow control. There are two o-rings around the deck that keep the cap in place. They fit well and have the right amount of tension to pull the cap off and put it back on. The mouthpiece from my mpt2 fit too loosely. It won't fall out, but it jiggles. Not sure which one is too big or too small. I'll be getting another mouthpieces - so this isn't an issue. The posts and the two phillips head screws are of very poor quality. The screws do not fit as snugly as they should. They are too loose when you tighten and loosen them. There are holes in the posts to thread the legs of your coil through, which is convenient, but the holes in the posts are not oriented properly. The middle post's hole is a bit off-center, while the outer post's hole is worse - pointing way too much to the outside. I tried to reposition the posts to straighten the holes out, but they didn't move easily, and I was concerned about breaking them by applying too much pressure. This is a real bummer because it impacts the coil leg position and thus the coil itself. There is an insulator ring around the middle post that does not sit right, mainly because it touches the outer post. I will trim it a tiny bit so it isn't touching the outer post and will then likely sit properly.

I only have 32 gauge kanthal here at the moment. I have 28 and 30 on the way. This proved to be a big problem because the wire is just too thin for the screws in the posts making contact. Tighten too much - it breaks the wire. Tighten too little, it makes poor contact. The result is that the ohms kept changing on me. Not by minor amounts. Big swings. Big problem. Also, the ohms were substantially lower than they were for the exact same coil length and gauge in the mpt2. Weird. This problem of inconsistent and ever-changing resistance (mainly due to the loose screws and/or the wire being too thin) obviously directly impacted the coil and thus the vape. I actually had the same resistance reading from both a 5 wrap AND a 6 wrap coil (all other things being exactly equal). lol. It's the loose screws/poor contact. I suspect that the 30 or 28 will fare much better. I thought about just wrapping the wire around the post screws, but was concerned the coil would sit too high. Maybe I'll give that a try later. The result was that while my ohms were in an acceptable range, around 1.7, that is a bit lower than what I think is the sweet spot for this battery (app. 2.1 ohms).

vaping impressions: HOT. After going from a top-coil w/ the iclear16's (pretty warm vape), then to a bottom coil in the mpt2 (much cooler vape - though still warm enough - which I prefer), the IGO-S is like a mini steam bath or pressure cooker inside. Lots of water / moisture from the vape. Not sure if that's just the way it is due to the small size) or if the coil/wick/etc is causing it? I suppose a longer mouthpiece would help cool things down? The draw I found to be a bit tight with the airhole positioned right at the coils. The other strong impression I had was the throat hit. Wow! Neither of the other two devices I have vaped with came close to delivering that kind of punch. Too much for me (used to light analogs), but not insanely rough either. Most ex-smokers will probably like it. Tried a few different juices. They all vaped well. Taste was very nice (but too steamy). The amount of vapour was fine (but less than my mpt2 at 2.1 ohms) though I was disappointed that there wasn't more. I think that will improve greatly over time as I get used to building better coils and wicks for it. I found that the cotton taste (not burnt - just dry) would come in after only two hits. This surprised me because the wick looks so soaked when I put the cap on. I think because the outer post is so close to the edge, that the cotton wick on the outer side of the coil is just too small. Or maybe it's the airflow that is causing the outer side to run out of juice much faster, creating a "lopsided" wicking issue? I tried various coils as well as different wick shapes, sizes, and layouts. A little bit more on the outer side, tucked under that side, etc., all of them cotton, but I consistently found the dry hits came faster than they should (according to what I've seen in videos and have read). Also, I consistently would get a minor singe mark on JUST that outer side of the cotton. The coils fired evenly/perfectly, so that isn't it. I'll have to figure out a better way to build it (if one exists). Maybe the position of the airhole could change that dynamic? Also, perhaps cotton isn't the best wicking material to use due to the tiny size and design of this particular RDA? I'll build with the silica wick provided and see what happens.

All in all, it's a fine RDA. The screws/posts are the most serious issue. I'm not sorry I bought it. I'll use it. But after being quite excited to get an RDA, I am so far a little disappointed with the IGO-S. However, I think that once I get used to it, and figure out better builds and make a few changes, it might just turn out to be terrific. The potential is there. I'll update the review after getting 28 and 30 and trying various configurations. Hopefully, that'll make a positive difference. Other possible changes: longer mouthpiece, larger airhole or additional airhole, changing the screws, etc. I'll go re-read some IGO-S threads and see what the more experienced vapers have come up with.
 
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svg1234

Full Member
Mar 7, 2014
53
32
Montreal
Well, it seems unlikely that anyone will ever read this review or reply to it...but just in case...

After spending a few more days with the mpt2, I have a much more favourable impression of it. After a few successes and failures, I've become quite good at building microcoils (even with the 32 gauge kanthal - the 28 and 30 is on the way). I've managed to build two heads that are really fantastic. Of the various vaping devices I have here now, this is definitely my favourite. The draw, amount of vapour, flavour, and TH is really perfect. That's the good.

The bad is that it is really a high maintenance device. Leaks every time you add or change juices (screwing the base back onto the tank). You have to keep filling the darn thing, because you can't fill it too high and you can't let it fall too low either (or you get the gurgling and flooding). You have to always check the head before re-assembling it, because whenever you unscrew the tank from the base to fill it, the head loosens due to the grommet on the chimney.

But when you aren't dealing with those issues...and you're just in the zone and vaping...it's wonderful.

Now, if only someone could make one that doesn't leak and that you can vape most of the way down. From what I understand the Nautilus is very good, hopefully they'll come out with a mini version. Or maybe I'll just get another (larger) battery and stop tinkering with these "mini" tanks. ;)

I really like that w/ a bag of organic cotton balls and some kanthal, this thing will just keep going and going with no additional heads to order (or cost).

Anyone need some iclear16's? :D
 

Jumpin' In...

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Sep 11, 2013
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Thanks so much for taking the time to write down your thoughts and observations regarding the IGO-s.

Over the past couple of days, I've been looking into getting a small RDA that would work on my small Kanger eVod, ego-style, regular and VV batteries, and stumbled over your thread. I've actually been thinking about heading into bottom-feeder territory eventually, but wanted to test the waters first to see whether I would really get better flavor when dripping. I've tried using a higher resistance 306, but have not been much impressed with my dripping experience so far, even when using the VV batteries. I find that I can get MAYBE 1 or at most 2 decent hits before things turn bland or worse. At this point I find the MPT2 much more convenient and CONSISTENT than dripping.

Anyway, my search led me to two entry-level RDAs: a Phoenix clone (Discount Vapers) and the IGO-s (OKC). I was just about to pull the trigger on the IGO-s when i found your posts. Now I'm thinking that maybe I should try the Phoenix instead.

I was leaning toward the IGO-s because it looks easier to build on and it doesn't have a fairly deep juice well like the Phoenix that seems to require a lot of wicking material. I want to be able to change flavors easily and it seems like all that wicking material would result in a lot of wasted juice. I don't mind dripping on the RDA fairly often - my thought was that the freshness of the juice was the whole idea after all - and thought that the shallow cupped plate of the IGO-s would be enough to satisfy me, but I didn't think the IGO-s would be as messy as you describe.

For clarification purposes, though, I assume that you're still discussing the IGO-s in your second post and not the "mpt2" as noted in the second sentence/paragraph?

By the way, i happened upon a post yesterday - which I probably wouldn't be able to find even if I tried today - where a guy folded one end of saturated cotton wicking material OVER the center post(s) so that dripped juice would fall on it. I don't know whether the juice he dripped was all VG, but the soaked wick in the picture looked fairly stiff - stiff enough to hold it's shape. Kind of like a waxed, horizontal cowlick, I guess. That made sense to me, as I thought the dripped juice would flow across and down the wick, resulting in the coil being sort of "gravity-fed".

Anyway, thanks again. I'll be watching this thread with interest. I'm interested in hearing whether 30ga Kanthal (which I already have in supply) micro-coil or whatever results in a better vape.
 

schuff

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Feb 12, 2013
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209
Dickson, TN
Can't you drip juice into the unit via the hole for the drip tip rather than by unscrewing the "tank" from the base? Would it still leak every time you drip?

Yes, you absolutely can. That is how a dripper is suppose to be dripped in.

OP the mouthpiece being loose is normal. It is suppose to be like that because the hole is about 1mm wider than standard drip tip holes so it's easy to attach / detach the drip tip so you can drip without taking the whole dripper top off by accident.

Just to be sure. OP I noticed you mentioned the air hole on the dripper top. When you push that cap down the hole needs to be lined up as close to the coil as possible. As you mentioned there is no adjustable airflow however you can drill that hole out starting with 1mm and working your way up to increase airflow in the future.

OP also when you make your microcoils use something small in diameter such as a toothpick, 1/16 drill bit or something else roughly in the 1.5mm diameter range. That will allow you to get 6-8 wraps without going way up in the ohms with that 32 gauge.
 

svg1234

Full Member
Mar 7, 2014
53
32
Montreal
but I didn't think the IGO-s would be as messy as you describe.

For clarification purposes, though, I assume that you're still discussing the IGO-s in your second post and not the "mpt2" as noted in the second sentence/paragraph?

Oops! I made a dumb mistake which in all my years of posting on the internet I have never made before. I posted in the wrong thread! Must be getting old. Thank you for asking...otherwise I would have never realized it. lol. Yes, I was referring to the mpt2 in the 2nd post - NOT the IGO-S. Actually, there are quite a few similarities in my experience with both of them. I became much better at building both of them - and am much more pleased with them (though the issues remain - especially the damn leaks on the mpt2. Tired of getting juice on my hands all the time).

The IGO-S is not messy at all. No leaks. But keep in mind that the "lip" that you see in pictures - which seems like it's substantial - is really not much of a lip at all. I suppose it is better than nothing, but you cannot FILL it in any way like a tank. I drip directly onto the wick, and a bit of excess will get soaked up just fine. So the "lip" helps. But any more than that, which I have not tried, and I think you will end up with a mess, especially since it'll end up on its side often.

As far as vape goes, while I like the mpt2 better for a consistent, balanced vape, I still like the IGO-S too. No doubt about it. Once I put in a wider microcoil and vape at lower resistance, the thing will be insane. But I don't want or need that. I'm not into clouds. I got it to TASTE flavours easily without having to load tanks. The IGO-S, being so small, gets too hot and STEAMY. The inside of the cup, after you take a hit, has droplets all over it. I suppose a long mouthpiece would be helpful. It certainly is a STRONG hit. More concentrated. I'm wondering if a larger airhole would make a difference in heat/steam (not just draw). I think so.

Bottom line: It has its place. For $12? lol. Not exactly a large investment. It's one tool in the vaping toolbox. But I wouldn't vape it for hours at a time. Too much hassle. I do NOT drip from the top (which si what you are supposed to do). It's not for me. I don't want ANY juice in my mouth. I open it up and drip onto the wick directly after a few hits. Maybe I just need to get the hang of dripping through the mouthpiece? However, if you drip down the center of the mouthpiece, it won't drip directly onto the coil - it'll drip smack onto the center post! That makes no sense to me.

Keep in mind, with a cotton wick, you don't have to worry about what you were saying re: changing juices. I just drip the new flavour right on top of the old. You get a mixture of the two flavours for one or two hits (which can be interesting), and then you get the new flavour. It's not like the silica in a clearomizer where the old taste will linger unless you clean it. Worst case, roll up another piece of cotton and stick it in. No big deal. You won't waste a lot of juice with the IGO-S at all.

The only major problem with it (for me) is the screws not fitting as well as they should. That makes them loosen on their own, which makes the resistance change between vapes. I received my thicker wire tonight, so I will give it a go later or tomorrow, and report back. The thicker wire should definitely make the loose screws less of a problem. I'm not sure if it's the posts aren't drilled as well as they should be or if it's the screws. I will try to find different screws that will fit and see if that solves the problem. Another thing I should mention is that it is NOT all SS. I've read concerns about the brass. I have no idea if I should be concerned or not. Just thought I'd mention it.

Also, I think a design where the posts are "centered" to the deck, rather than one in the middle and one on the outside, would be better. For a 14mm device, there just isn't enough wick on the far side unless you tuck it under or above, or tilt the coil, etc. I was getting a consistent cotton taste at one point and couldn't figure it out. Kept changing the wicks (fatter/thinner), the coils, etc. Then it hit me. It was the far end side of the wick just slightly TOUCHING the post (which gets very hot). So I pulled the coil a bit further away from the posts. Problem solved.
 
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svg1234

Full Member
Mar 7, 2014
53
32
Montreal
Yes, you absolutely can. That is how a dripper is suppose to be dripped in.

OP the mouthpiece being loose is normal. It is suppose to be like that because the hole is about 1mm wider than standard drip tip holes so it's easy to attach / detach the drip tip so you can drip without taking the whole dripper top off by accident.

Just to be sure. OP I noticed you mentioned the air hole on the dripper top. When you push that cap down the hole needs to be lined up as close to the coil as possible. As you mentioned there is no adjustable airflow however you can drill that hole out starting with 1mm and working your way up to increase airflow in the future.

OP also when you make your microcoils use something small in diameter such as a toothpick, 1/16 drill bit or something else roughly in the 1.5mm diameter range. That will allow you to get 6-8 wraps without going way up in the ohms with that 32 gauge.

re: the mouthpiece fit. Yes, that makes sense. Thank you.

re: the alignment. Yes, I knew that. I have it positioned properly. If I drill the airhole out a bit larger, would it COOL down the vape a bit and/or reduce the amount of moisture/steam this thing produces? I find the steam overwhelms the flavour. The vapour is there. No doubt about it. But it is too "saturated" (but not with juice - with heat/water?).

re: coil diameter. I know. Thanks. I have all sorts of "mandrel" sizes. But if you go w/ too small of a circumference, then the wick has to be smaller, and the amount of drags you'll get before having to "reload" will be even further reduced. Which is no problem if you're dripping from the top (like you're supposed to. lol), but not the way I'm using it - YET. I will start dripping from teh top from now on. It's just that I find the cotton wick is so small that it dries too quickly and if you don't drip right on it, it won't soak up the juice on the deck the way a small wick in a mpt2 will (because the juice is always right there). Does that make sense?

Anyway. It's only been a few days! I got my 28 and 30 today, so will experiment. The other reason I don't like the 32 on this is because it is too thin for those slightly loose screws. It doesn't "catch" the wire as well as it should, in order to keep the resistance constant.

But man....this thing packs a punch (if you want it to)! heheh.
 
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Jumpin' In...

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Sep 11, 2013
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Regarding the MPT2, I've been using them pretty much exclusively for the last few months on my Kanger regular and VV eVod batteries - with the exception of when I'm dripping with a 306 atty, which of late is pretty rare. Unlike my eVod heads, once I started wicking my MPT2s with cotton (organic cotton balls from Walgreens) I've had zero leaking or gurgling problems not due to dummy error. I think I had one leak badly when I forgot to install the silicone cap or washer or grommet or whatever you want to call it on the atomizer stalk or chimney or whatever you want to call that. I always have two MPT2s going, each with a different flavor. I routinely clean them after 2 tanks of a juice, when I change flavors.

I never get leaks when refilling the same flavor. When a tank gets close to empty, I take it off the battery, place it upside down in an empty jigger for a couple of minutes, then remove the base and refill. I might get a drop or two worth of juice on my hands if I'm careless, but usually none at all. I fill to the top .... Err - actually the bottom I guess ... of the visible glass and even past that sometimes.

When it's time to clean and change flavors, I always vape until I start tasting a hint of burnt cotton, so I waste almost no juice at all. I don't get leaks when changing flavors either.

I use 32ga kanthal wrapped around a stainless wire (more like a rod when cut short) that just barely fits between the slots in the base of the atomizer (the wire is thicker than the 1/16" bit that many people use). To re-wick, I pull cotton through until the cotton pretty much gets wedged in the opposite side of the coil. I don't use flavor wicks. Between rebuilds, I take off the cap, pull and toss the wick and soak the coil in vodka for a few hours, then dry burn, then rinse in vodka, then dry burn again, then re-wick with cotton. I use a VV battery set at its lowest setting - 3.2V - when I dry burn a coil to avoid damaging the rubber (?) grommet that keeps the coil leads separate at the bottom of the atomizer.

Personally, I really like my MPT2s - especially the v.2s - and don't see them as "high maintenance" gear at all. But then, I guess maybe I don't mind tinkering a little with stuff - and I don't think I run high VG juices either.
 
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svg1234

Full Member
Mar 7, 2014
53
32
Montreal
Update: Well, after reading the posts above, which resulted in some behavior mod (lol), I spent the night drippin' and vapin' w/ the IGO-S exclusively. Dripped by just taking the mouthpiece off (as god intended!). Much better. Very pleasant vaping experience. The number of drags between refills has increased. My wick is actually doing better by just dumping a few drops in than before when I was placing the juice directly on the wick. Looks like I'll be using this little dripper more often than I thought just a few hours ago.

And this is with a 32g 9 wraps @ 2.7ohms (which is way more resistance than anything else I've been using). I'll get that much lower. I was in Canadian Tire a few nights ago, w/ microcoils and coil jigs on my mind, and I saw a few hitch pins. The shape just "clicked". Bought one. Bent it a little here and there - and voila - perfect microcoils. The tiniest, least expensive coil jig you could imagine. Maybe I'll take a picture and add it to one of the coil jig threads. The package says 5/64", but there's no way it is. I have a 5/64" drill bit and this hitch pin is smaller. (I assume it's because they are made to fit INTO a 5/64" hole and thus must be narrower). A bit bigger than 1/16". They had a smaller one which I will buy now that I know I can use it to make coils. Anyway, I'll build more coils w/ the 28 or 30 and perhaps use a narrower mandrel too. Lots of possibilities. But it's a bit frightening. If this thing hits like that now....look out after I put in a better coil. I find that the same nicotine level hits so much harder. I'm putting the finishing touches on a coil calculator spreadsheet that I think a lot of people - especially new builders - will find quite handy. When it's ready, I'll upload it.
 

svg1234

Full Member
Mar 7, 2014
53
32
Montreal
I think I had one leak badly when I forgot to install the silicone cap or washer or grommet or whatever you want to call it on the atomizer stalk or chimney or whatever you want to call that.

You think thats' bad? Try forgetting to put the chimney back on, screwing it together, and standing it upright. heheh. I've done that TWICE now. Was so focused on the coil and wick, and I test resistance on my battery, that I then just screwed the base on and..........

As for the leaks, as I wrote, it's nto so much that the thing is just sitting there and it starts leaking. I've had that happen once. It was terrible. I brought it onto my bedroom from the livingroom. My bedroom has a humidifier running 24/7 (very dry Canadian winter) and is far more humid than the lvr. I actually think it was that shift in "pressure" that caused it to leak. Nothing else had changed. I didn't knock it or bump it. No refill. Nada. But aside from that one time, all the rest have been when putting the base back on. Maybe it's the o-ring, the threads, or the glass isn't flush? Unless I leave it looser than I should (and then I'm worried that it will really leak), I get some juice squeezing out between the base and the other piece.

There's an inexpensive mpt2 clone on FT. I want to order some other stuff from them, so I think I'll grab that one instead of getting another mpt2 or a mini davide. From the reviews there, it's machined better than the mpt2! And, one thing I really like about is, is that the top piece is threaded onto the post (unlike the mpt2), i.e. you can fill it from the top! That could make a huge difference. The less you need to unscrew the base - the better.


I use 32ga kanthal wrapped around a stainless wire (more like a rod when cut short) that just barely fits between the slots in the base of the atomizer (the wire is thicker than the 1/16" bit that many people use). To re-wick, I pull cotton through until the cotton pretty much gets wedged in the opposite side of the coil. I don't use flavor wicks. Between rebuilds, I take off the cap, pull and toss the wick and soak the coil in vodka for a few hours, then dry burn, then rinse in vodka, then dry burn again, then re-wick with cotton. I use a VV battery set at its lowest setting - 3.2V - when I dry burn a coil to avoid damaging the rubber (?) grommet that keeps the coil leads separate at the bottom of the atomizer.

Stainless wire? You mean mesh? I haven't used anything except cotton for my builds. If you have the silicone piece instead of the rubber one (which the newer ones come with - as did mine), and you use a microcoil, you will NOT burn that piece by dry burning your coil (obviously w/o the cotton in). I've done it many times. No burn marks. Don't do it with a regular coil though. For the mpt2, the 32g works well. The thinner wire is an advantage versus a disadvantage on the IGO-S. I haven't cleaned either of the two mpt2 heads I have yet. Soon. You're very thorough! I was doing that routine w/ the iclear16 heads (because they really needed it). Don't know if I'll bother w/ the mpt2.

Personally, I really like my MPT2s - especially the v.2s - and don't see them as "high maintenance" gear at all. But then, I guess maybe I don't mind tinkering a little with stuff - and I don't think I run high VG juices either.

Well, my opinion is certainly "evolving". I wouldn't call it "high maintenance" any longer. More "tempermental and delicate". I've been a tinkerer my whole life - with far more complex things than these silly little things - so that isn't the issue at all. I just hate getting juice all over my hands and constantly having to wash them or use rubbing alcohol (I have a bottle sitting right next to me as I type because that's how often I had to wipe the juice off). Some people don't mind I guess. But it was the first few days and I was figuring it out and building lots of coils, wicks, different juices, etc. Only took a couple of days. Then once I hit a couple of really good ones - that's it. Haven't touched a thing. Not even to clean it. It's just that almost every time I refill, I get a little juice squeezing out. Which isn't so bad NOW. I've gone through boxes of kleenex thanks to that mpt2. lol.


All in all, I'm now very pleased. Put the iclear16's behind me. Have a mpt2, the IGO-S, and the cartomizers. It has all come together quite nicely. Between those 3, I'm set for the time being. But there is one thing I am still lacking....QUALITY and good-tasting juices. That's next on my vaping agenda. I need to find some good flavours (I've found a few, but they've been inconsistent from the vendors I've bought them from) and some high-quality juice-makers. I'd like to move away from the tobacco flavours (even though I do enjoy them). Perhaps mix them. I mixed a tiny bit of Newport w/ a tobacco that I have left over here, and even that made a huge difference. A little hint of menthol can be a nice change (but not all day long).

OK. Sorry for straying way off course.
 

Jumpin' In...

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Sep 11, 2013
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I guess it could be the humidity that is causing your leakage problem - it's always humid where I am. FWIW, I screw the parts in pretty tightly - including the sections that hold the pyrex tube. I don't want the sections coming apart when I'm trying to unscrew the MPT2 from a battery. They are screwed on tight enough that I don't think most people would be able to absent-mindedly unscrew them.

Re the stainless wire: I could have written that better. I use the stainless wire to wrap new coils, much like many people use a 1/16" drill bit. The wire is thicker than a 1/16" bit, so a 4/3 coil usually ends up around 2.1 ohms. I use cotton for wicks - which is fairly easy to install because of the larger diameter of my coils.

The only MPT2 I saw on FT were billed as "authentic" and looked like a v.1. The price difference was negligible in my opinion - although I guess shipping costs would figure in. In any event, my v.2s work well so if I ever need another one (I already have a spare v.2), I'll continue to buy from one of the US vendors I've used.

Glad to hear that the newer coils have replaced the rubber grommets with silicone. Unfortunately, I probably have 15+ new and unused coils - plus 6 or 7 coils already in rotation - with the older grommets (I assume). I've only retired one coil so far - I ripped one of those grommets while installing a coil - so I don't know that I'll ever need to buy more.

I just ordered an IGO-s for $10 + shipping. Also ordered a 510 drip tip and a ego "thread cover" off of ebay - the latter of which I hope will help stabilize the IGO-s while it is sits on one of my batteries. One vendor was selling an "IGO S2" (Clouds of Vapor), but there were no pictures or description to help differentiate it from the older model. It was a bit more expensive, so I decided to go the the tried-and-true and cheap model. Hopefully I won't have the same problem you have with the position of the post holes.

And so the adventure begins - again. :)

Thanks again for taking the time to write down your experiences with the IGO-s. I'm actually a little worried that I'll really, really like the increased vapor and flavor -- which will result in an increase in my monthly juice bill. :unsure:
 
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schuff

Senior Member
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Feb 12, 2013
291
209
Dickson, TN
re: the alignment. Yes, I knew that. I have it positioned properly. If I drill the airhole out a bit larger, would it COOL down the vape a bit and/or reduce the amount of moisture/steam this thing produces?

By increasing the size of the airflow hole you are freeing up the draw and making the vapor flow easier. Basically that "steam" effect you are referring to is due to the airflow being tight and you are unable to easily inhale all the vapor produced by your coil. Drilling it out will cool it down very very slightly but it also makes it a much easier drag with more flavor / vapor production if done correctly.

I noticed you mentioned the dremel. If you have a 1/32" drill bit or roughly in the 1mm range start with that. You will notice the difference. If the draw still feels tight to you and you keep getting a slightly steamy tight feeling work to 3/64".

I sell igo-s drippers and set them up for customers all the time. Very few of them leave with the stock airhole.
 

svg1234

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Mar 7, 2014
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Hopefully I won't have the same problem you have with the position of the post holes.

Well, they are where they are. You just have to work around it. Not such a big deal, but would be much better if the two posts were centered to the deck. The other post problem on mine is that the outer post's hole is not facing straight. Yours will likely be better. Let me know how the screws are (if they're a bit "jiggly" in the post holes).

I'm actually a little worried that I'll really, really like the increased vapor and flavor -- which will result in an increase in my monthly juice bill.

lol. It's not just that. Once you use a device that packs a punch... the other devices suddenly seem quite "tame". ;)
It's not just the nicotine. It's like you see in the videos on youtube. Chasing clouds can become addictive as well.
 
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Jumpin' In...

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Well, they are where they are. You just have to work around it. Not such a big deal, but would be much better if the two posts were centered to the deck. The other post problem on mine is that the outer post's hole is not facing straight. Yours will likely be better. Let me know how the screws are (if they're a bit "jiggly" in the post holes).

I'm not concerned about the position of the posts - I can work with that. It's the incorrect placement of the HOLES in the posts that would drive me a little nuts.

lol. It's not just that. Once you use a device that packs a punch... the other devices suddenly seem quite "tame". ;)
It's not just the nicotine. It's like you see in the videos on youtube. Chasing clouds can become addictive as well.

Heh. I don't *think* I'm a cloud chaser; I'm satisfied with what I get from my MPT2s. I'm probably more of a flavor freak. If dripping on the IGO-s results in a huge flavor bump, I may feel compelled to take a trip to Reoville sooner than planned.
 

svg1234

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Mar 7, 2014
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Well, I built my first 30g coils for the IGO-S and the mpt2. Much easier wire to work with. That 32g is just too thin. The screws are much more stable w/ the 30g. WIll try the 28g later.

The IGO-S is vaping like a champ. The ONLY thing I'm finding odd is that sometimes I'm getting too much cotton taste. Not burnt - just too "cottony". It's ok. But sometimes there is NO cotton taste and it's pure flavour. Other times, not so much. The wick is very wet - so it isn't that there isn't enough juice. I've tried various thicknesses and position of wick. I just don't know what it is. I thought it was because on one of the builds the wick was touching a post. But I'm not sure. Perhaps it's a minor imperfection in my microcoil? They look right. When I test fire them (dry burn) they are burning from teh middle and spreading out to the ends uniformly. Or could it be that the legs aren't even in length and that impacts it? I find that sometimes there is a delay between when you press the fire button on the battery and the heat reaching the coils. With some of my coils, they "light up" instantly. With others, there is a noticeable delay. (All with coils at the same resistance). I think it's the coil. The end wraps, the last wraps where the legs begin, I find are the most difficult to get uniform in circumference and contact. More art than science. ;)

I don't *think* I'm a cloud chaser; I'm satisfied with what I get from my MPT2s.

lol. Until you start producing clouds w/ the IGO-S. heheheh.

Overall, I would say more "balanced" flavour from the mpt2 and much more "punch" (vape) from the RDA.

I'm going to post my CoilCalc (patent pending) spreadsheet in a few moments (once I find the right forum to put it). Take a look...
 

emus

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I run IGO-S's brother at 1.2 ohms and it produces out-standing vape with stock air hole.
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aXlD58I.jpg
 

svg1234

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Mar 7, 2014
53
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Montreal
That heavier wire will slow down the time it takes to get them glowing. When you try the 28, it'll take even longer, which is why I've given up on the 28 for now.

Yeah, that's what I figured. I'll stick with the 30. I think it's a good compromise. The 28's resistance is TOO low for my devices/battery anyway.It would take a lot of wraps and a larger mandrel to hit a range of ohms I could use.
 

Jumpin' In...

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I've been playing with the IGO-s for a few days now, so here are some of my observations:

- 30 gauge Kanthal micro coils do not work for me. Too slow to glow. My 650 MAH regular and VV batteries are probably too weak. I tried the micros a couple of times and I've decided that it's just not going to happen without a power upgrade. At least now I know that I *can* build a decent micro coil. :D

- Six wraps of 32 gauge Kanthal results in a 1.9 ohm coil, which seems perfect given my battery limitations. Tried a micro with 32 gauge, but it was so short that it seemed pointless to me.

- "Gravity" from Nicoticket tastes best with the 1.9 ohm coil at 3.4-3.6 volts. Ditto with some of my lighter AIV juices.

- Heavier eliquids such as coffee, custards and some other bakery type blends seem to taste better at higher voltages. In fact, I was surprised by how good the coffee flavors tasted - I had given up on coffee juices and hadn't tried them in months. I'll have to try some of Halo's "Longhorn" sometime too; I haven't been vaping tobacco flavors either for months now. I probably still won't like it, but it would be interesting to see of it tastes in the RDA.

- Taste seems best on a cold atty - or maybe it's just that my tastebuds recover between vape sessions?

- Wrapping the outside tail of the cotton wick over and above the center (positive) post works well. The other end of the wick (the center post side) rests on the deck and follows the outside edge a little past the center post. Much of the deck remains open. I drip with the drip tip removed, directly onto the upturned wick - 5-7 drops works well enough. I tried a number of different configurations and this works best so far. [Edit: This is still changing - still trying different wick configurations.]

- Still playing with the volume of cotton to use as a wick. Too little and it burns too easily (horrid experience), too much and it clogs. Think I will get it soon.

- My cotton wicks burn very easily, especially if they are "thin". I may have to try silica if I can't get a better handle on when I need to drip more juice. Luckily the cotton wicks are super easy to replace.

- The tip of a MPT2 is a near-perfect fit for the IGO-s and I'm comfortable with those tips. Wish I had a couple of spares.

- Looks particularly good with a gunmetal colored thread cover and stainless battery. (Imagine a mini Mini Protank 2 with a stainless tank section.) Screwing the thread cover up against the base of the atty also helps stabilize the atty; the thread cover sort of locks the atty in place.

- When screwed onto 3 of 4 of my batteries, the coil ends up almost directly across from the fire button, which lessens the chances of juices leaking out the air hole.



When I hit the right combination of wick, coil and juice, vapor "thickness" and flavor are clearly better than with my MPT2s. The tanks are still more consistent than my dripping technique (or lack thereof), though.

Heck, I may buy another one of these so I always have a clean one ready to go. :) Plus, I'm wondering whether drilling out the hole a little might result in a better vape - even with my somewhat anemic batteries. I don't mind the draw as is, though.
 
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