wanting to purchase one and was wondering what the difference in the two was ? and what everybodys thoughts were vivi 2 or vivi 2.5 ?
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My thoughts are I'm damn tired of being Vision's beta tester!
Looks to me like they are dumping all their pre-production crap off on us!
Simply put they need to get their products sorted out and then bring them to market!
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The air hole is in the connector on both the V2 and V2.5. Only the V1 has the air hole in the base.
The V2.5 is supposed to use different plastic that's more resistant to cracking. I have both and have inspected them as closely as possible. I can't tell the difference, so you'll either have to experiment or take their word for it. Unfortunately, I've mixed the 2.5 in with the 2s, so I can't do any experimenting myself. I'm assuming there's no difference and I'll use the metal tank for acidic juice.
The V2.5's have longer wicks. The 1.8 and 2.4ohm wicks are multi-stranded. The 2.8ohm is one thicker strand. This is the only obvious and verifiable difference I see between the two versions and, frankly, I don't see it as an improvement. I have replaced the multiple wick on the 1.8ohm head with a fatter short wick and it works better for me, even with 70% VG. I don't know if I could have gotten better results by simply trimming the multi-stranded wicks. I'll try that with the 2.4ohm head. IMO, the fatter, short wicks give better flavor and, perhaps, marginally better throat hit. They certainly don't wick any worse and, in fact, seem to be better. Again, YMMV.
Other than the longer wicks and (maybe) crack-resistant tanks, everything else is identical between the V2.5 and the V2.
In the future, I'll be buying the V2. If I can still get the 2.8ohm heads for Gotvape's $1.49 price, I'll get those, but I'm not impressed with the ".5" part of the whole thing.
The V2.5 is supposed to use different plastic that's more resistant to cracking. I have both and have inspected them as closely as possible. I can't tell the difference, so you'll either have to experiment or take their word for it. Unfortunately, I've mixed the 2.5 in with the 2s, so I can't do any experimenting myself. I'm assuming there's no difference and I'll use the metal tank for acidic juice.
The V2.5's have longer wicks. The 1.8 and 2.4ohm wicks are multi-stranded. The 2.8ohm is one thicker strand. This is the only obvious and verifiable difference I see between the two versions and, frankly, I don't see it as an improvement. I have replaced the multiple wick on the 1.8ohm head with a fatter short wick and it works better for me, even with 70% VG. I don't know if I could have gotten better results by simply trimming the multi-stranded wicks. I'll try that with the 2.4ohm head. IMO, the fatter, short wicks give better flavor and, perhaps, marginally better throat hit. They certainly don't wick any worse and, in fact, seem to be better. Again, YMMV.
Other than the longer wicks and (maybe) crack-resistant tanks, everything else is identical between the V2.5 and the V2.
In the future, I'll be buying the V2. If I can still get the 2.8ohm heads for Gotvape's $1.49 price, I'll get those, but I'm not impressed with the ".5" part of the whole thing.
I understand your point. But this is not Gotvapes normal beta testing thing. The V2's are ready and a vast improvement over V1, which wasn't ready for prime time.
All Gotvapes did was to re-name their semi-customized version the V2.5. Despite what the name implies, this isn't a new release by Vision. It isn't a release that corrected any problem with the V2.0. It's strictly a case of Gotvapes marketing and, IMO, it's a bit deceptive by implying that the V2.5 is somehow improved. If I was an exec. at Viision, I'd be on Gotvape's case about it. But they're a pretty big Vision customer, so that isn't going to happen.
Until I get credible verification that the tank on the V2.5 is more crack resistant than the V2, I will consider the V2.5 a half-step backwards. The V2 works beautifully and nothing on the V2.5 improves it. In fact, quite the opposite.
What Gotvapes has done is the same as if I asked Microsoft to tweak Win7 to use my own custom browser the default. Then I sold copies of it and re-named it Windows 7.5.
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There are a few differences. The top cap is different allowing for things to flow back to the coil better and I think it seals on the rubber cap better. It also allows the drip tip to seat all the way. I haven't taken a head apart yet, but it seems like they did something to keep the coil centered better. The coil seems to sit a little bit higher (and much higher than v1). It seems like the threads on the tube may have even been reworked as the caps seem like they go about 1/2 thread deeper onto it. If ordering from GotVapes, they also got the heads with the long wicks which surprisingly I have not had a wicking problem or dry hit yet with. I think I saw somewhere that they also changed to a better plastic for the tubes to avoid cracking with certain juices. Not sure if that change was made with v2 or v2.5.
Both versions have worked really well for me right out of the box. But I'd recommend going with v2.5 overall.
HTH
Both versions have worked really well for me right out of the box. But I'd recommend going with v2.5 overall.
HTH
Guess I better take a closer look at the two side by side after reading this. I only got one v2.5 as I didn't think the v2 could be improved upon.
That said, the 5 v2s I have and the 1 v2.5 I have both work really well for me right out of the box.
Well, you just got me to fetch my calipers. I have three of the v2 and one v2.5. I just measured every dimension possible on all of the caps and there is not one single difference in any of them, at least any difference of 0.1mm or more.
Now you got me pulling out my 20X lenses. The heads on both versions have 5 threads between the gaskets. The gaskets are exactly the same size and the thread pitch has to be the same because they are interchangeable between bases and they're 510's. The slots in the coil cup for the wick are also identical both in width and length so the coil has to be in the same position. The silica sleeve around the coil is also identical. I re-coiled and re-wicked a V2.5 just a couple nights ago. The V1 used a multi-stranded wick wherein one of the wicks was outside of the coil. The V2 and V2.5 both have better quality control re. the placement and centering of the coil, but there is no design difference between them. Any other difference is caused by variations in assembly. If a coil is sitting too high, push it down. If it's not perfectly centered, you can just nudge it one direction or the other. The housing of the head is exactly the same on the V2 and V2.5.
If ordering from GotVapes, they also got the heads with the long wicks which surprisingly I have not had a wicking problem or dry hit yet with. I think I saw somewhere that they also changed to a better plastic for the tubes to avoid cracking with certain juices. Not sure if that change was made with v2 or v2.5.
Both versions have worked really well for me right out of the box. But I'd recommend going with v2.5 overall.
HTH
I've not had problems with dry hits on either version either. IMO, the shorter wicks definitely produce better flavor. Maybe it has something to do with the larger mass of juice that has to move on the longer wicks to fully saturate the small area of the coil? I dunno. All I know is that if Gotvapes is saying that the top cap has been re-worked, or the metal part of the head is improved, or any dimensional change beyond the microscopic has been done, they're full of it.
LOL, sorry, Sailorman. I did the same thing when I got home last night and you're right on every count. I've been going through so much gear lately that some of my comparisons may have been between v2.5 and my cobbled together v1_2_2.5 (parts from all three).
I think the v2.5 I got must have gone through some serious QC and has zero assembly flaws. The v1s and v2s I have, the top and bottom caps don't screw flush to the ends of the tubes whereas the single v2.5 I have they both do.
So aside from the longer wicks, different plastic(?), and being able to get the drip tip to bottom out, there aren't any discernible differences between v2 and v2.5. I stand corrected. Thanks for keeping me honest, Sailorman.
The wicking does have me a little baffled still. I'm still using the first head on the v2.5 and haven't trimmed the wicks and it's working as well as the v2 heads with the short wicks (using identical juice of course). I occasionally get a hit with slightly muted flavour now (maybe 1 in 10 draws). That may only be all the PG coating my taste buds though. I think tonight I may take this head out and soak it in a fine Russian vodka. I'll trim the wicks on a new head and see how that goes. I can't imagine getting better flavour than I'm getting now but we'll see. It's pretty freakin' good right now!
Either way I'm very satisfied with the Vivi and happy as can be to be rid of regular cartos.
I'm still waiting for my V2, by the time it lands on my mat tomorrow will there be a V3 out? lol
My 2.5 will be here tomorrow, as well as my BB, can't wait for that mail run lol.
Ahh... A Frankenova. I got a couple Vision Stone tanks like that. Gotvapes swears they weren't interchageable, but i got news for them.
I don't have any V1s, thankfully, but I noticed a bit of "slag" plastic was peeling loose from the top edge of one of the tanks, not sure if it was a V1 or V2. I could see how that would prevent the cap from seating perfectly. I trimmed it off with a razor blade. Maybe some fine sandpaper would even things out. I chalk it up to variances in manufacturing. Consistency was never Vision's strong suit.
Did you actually measure any difference in the depth of the hole for the drip tip? I usually don't use the included drip tips but never noticed any problem with any of them bottoming out, except for one particular stainless steel one I have that bottoms out too early. I measured the holes yesterday and couldn't detect any difference. Admittedly, my depth gauge only resolves to 1/10mm. I'm still suspicious about that new plastic claim. I know what Vision has used in the past for crack resistant tubes and it's not as crystal clear as the pure polycarbonate. If I had some known plastic cracking juice and I hadn't already mixed up the tanks, I'd test this claim. Suppliers are notorious liars and I have no reason to think Vision is any different.So aside from the longer wicks, different plastic(?), and being able to get the drip tip to bottom out, there aren't any discernible differences between v2 and v2.5. I stand corrected. Thanks for keeping me honest, Sailorman.
IMO, they wick just about the same. I don't notice any difference. Once it gets below about 0.7ml, you have to tip it now and then regardless of which wick you're using and, before then, the short wicks always manage to get soaked just by normal movement. I think the shorter wicks taste better, but that conceivably be just random chance and the coil is better on the shorter wicked heads. I have a hypothesis about why that could be the case, that short wicks taste better, but it'll just remain a hypothesis cuz I have no way to test it.
You're right though, I have a full box of cartos here and I can't envision why I'd bother ever using them.
I have the 2.0 and the 2.5 version.
The 2.0 heads i received were all short wicks and vape was fine for me.
The 2.5 heads were short as well except the 2.8ohm head which had long wick and the vape was not that good i trimmed it like the other heads and now the vape is fine.
I do not know why the short wicks work better but that ok. ; )
The 2.0 heads i received were all short wicks and vape was fine for me.
The 2.5 heads were short as well except the 2.8ohm head which had long wick and the vape was not that good i trimmed it like the other heads and now the vape is fine.
I do not know why the short wicks work better but that ok. ; )
I have 2x 2.5s on their way I will report back sat what I get and any issues I have if any.
I got all 3 versions and I usually like short wicks but I have so far only liked the v2.5 long wick ones. However I think it is because the v2.5 long wicks have thicker wicks thus allowing more juice to be heated. Just my humble opinion though. It's really hard to tell when the coil compresses the wicks together to the same thickness. The version 1 has 3 long wicks wrapped and 1 on top. The verson 2 has one short stubby one. The version 2.5 has 4 long wicks wrapped.
Then again... who knows... maybe I got lucky with one v2.5 head, since I have only been using it and some people like the short version better. I guess time will pick the winner.
Then again... who knows... maybe I got lucky with one v2.5 head, since I have only been using it and some people like the short version better. I guess time will pick the winner.
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LOL, I like your name for it better than what I came up with. Frankenova, that's great!
I didn't do any measuring. I suspect it's more the width of the hole that got shaved ever so slightly. I was able to get one of the v2 drip tips to bottom out last night but it will probably be near impossible to get it back out by hand now.
I was reading a discussion in another part of the forum about the short wick vs. long wick and why shorter seems to work better. They got all scientific and molecular and stuff and my eyes glazed over. My guess is that it has to do with the fact that various ingredients in the juice never really become one so a longer wick may keep it all from blending together as well at the coil. So maybe the PG makes it there more easily than flavouring. But then I wonder how come the flavouring doesn't catch up after a few draws and I get myself all confused again.
Anyway, I replaced the head in the v2.5 last night with a new one. I trimmed the wicks to about 1/8 inch longer than needed to touch the sides of the tube and made a feeble attempt to fray the ends a little bit. Wicking was definitely much faster and flavour was better than with long wicks.
Whatever the reason, shorter is better from here on out when it comes to Vivi wicks. I'll leave the science to the scientists.
I've still not tried any rebuilding. A couple bucks per replacement is well worth it to me. I may give it a whirl one of these days out of curiosity though. Maybe that will help me understand the differences better.
I honestly can't tell any difference in flavor after trimming the wicks. I'm liking the quantity of vapor the Nova produces, the taste seems cleaner than a cart, but flavor is still lacking even compared to a carto. My next attempt to improve flavor will be reworking. Hoping someone else beats me to it and reports on the difference different wicking materials make.
Ok, started a new 2.8 head, really fluffed the wicks by unwinding them, also filled with a new juice and am finally getting really good flavor. Was it the wick fluffing or just the new juice - damn, I wish I new for sure.
I'm getting mine soon and fluffing the wick seems to be a popular suggestion to enhance the flavor!
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