After a bath, it is built...
Observations:
Overall build quality -
I havent found anything in the machining to even have a niggle over. Its better made than my main squeeze, the Lemo 2. Threads are extremely well machined.
That one reviewer (DJLSB) mentioned the authentic has wonky threads, and at that price, when the clone is buttery makes me feel less guilty about buying the clone.
Fitting a coil -
I use tc full time, so its my usual 7 wraps of 26g 316L SS on 3mm id - usually gets me just under 0.6.
The kanger style trapping is a plus, its the only thing id change on my Lemo 2 deck (i did beg them for this in the Lemo 3, but they went the other way and built a heretical dual coil piece of nonsense with a massive airflow trough in the middle that Lemo devotees dont want to buy - but they did put in better coil leg trapping, so...). I put the leg in the channel and bent the leg around (warning, at least with 26g, you cant rely on putting it in the channel, straight through and trapping it...at least on the clone, as the outward pressure form the coil forces the leg to the outside of the channel, and the screw doesnt quite reach). So down the channel and bent around the screw, and screwed down and youre good. I suppose you could "u" it back around the screw, but you'd need snips to get down there on the return channel to snip it off. Anyways, trapped the leg was. Whacked it on the TreeBox, new coil ...yes, and 0.56ohms it read. Whacked it on the Efusion DNA200 and ran atty analyser (live readings) in Escribe.....0.57 and stable as my Lemo 2...so conductivity and stability looks good so far for tc. Put the TB in watts mode, turned it down to 12w and pulsed the coil...uniform heating yay - i rarely even bother to pulse/dry burn my builds these days (in fact i havent done it in 7 months up until this point), but with a new tank i wanted to get this right and rule out this if there was an issue. One comment on the deck, id personally like it to be a bit wider, but then id probably like to see most decks a little wider - getting 7 spaced wraps in there is a bit fiddly, as i like to leave a good space between each wrap...and this is my own belief/observation, because once you fire it the outward tension or the tendency for the wire to want to spring outwards changes...the wire loses that outward tendency with heat and instead wants to collapse...hence why i like to leave a decent space between each wrap. So bigger decks, yes please for spaced coil people maybe...people stuffing in kanthal contact coils and low wrap/ohmage claptons etc probably arent going to complain. Maybe im the only one who wants slightly wider decks....
Coil centered and pulled about 3mm off the deck, same as i do on my Lemo 2
Wicking -
Cut the wick ends just outside of the base diameter. Despite after 18 months of knowing that what appears as large and easy in youtube tutorials, putting the wick into the channels was just a bit more fiddly first time out than Daniels review and build youtube video made it seem. I dont have the curved tweezers, so the bend and slot it back into the channels was a bit fiddlier. It will get easier with each build though. I made sure that the wick filled both the lenght and the width of the channel, and by looking at the cutaway slots on one side of the deck, i could see i got it pretty much spot on...the wick ends touching the deck uniformly, and the wick coming out of the coil flowing down nicely, i.e. no upward kink of wick above the coil. Not bad considering when i cut it just outside of the base diameter i was eyeballing, and initially thought i hadnt left enough on
Airflow control -
Im starting to think its a bit of genius in the way it works. The dots on the clone at least could be easier to see. But the lift up and twist until you see the size you want via the dots and then push back down is the goodness. It will not move without user intervention. I like it, a lot.
And now we come to my bugbear and my most contentious device feature in vaping, and one i loathe, because i personally believe its a marketing bullet point, and a bit of wankery/gadgetry thats to me entirely unnecessary...
Juice flow control -
I closed it up. I filled the tank. I opened it 2 turns. I vaped. At thsi point i knew the wicking was good, i cranked it another turn. I vaped. Then i opened it all the way. I vaped.
No leaks.
Now my unflavoured mix, since moving to distilled water is like water compared to my previous mix at 50/50 or 60/40 VG/PG.
Currently it is (14mg 30ml batch):
* 2.1ml Nic (200mg/100% PG based - usually i do 12mg mixes, but moving to DW, i adjusted it up to counter the water a bit)
* 24.9ml VG
* 3ml Distilled Water
In percentages thats
7% Nic/PG
83% VG
10% Distilled Water
83% VG might sound thick, but not once the DW gets thrown into the mix. Its easily the thinnest mix ive ever run.
My point being that if if any of my tanks was going to leak, it would do it with this mix in it
JFC wide open, chain vaping...no leaks....
So im going to have a slight rant on jfc again, and then ill leave you in peace. I made this same point when i had the Merlin...jfc does effectively nothing to stop leaking, with one caveat, you have your wicking right. In less details (probably) than my rant in the Merlin thread (where i purposely badly wicked it to make my point), even in the most often fired back defence of it...at filling time, i still call bs. Because any tank with the wicking done right, a properly sealing afc, and a fill method with return pressure path, theres no need for jfc - it wont leak even during filling. I wont rehash my entire post on the fluid dynamics and physics that make my ultimate point about jfc here, except to say that Svoe Mesto made topfill pressure leaking even less likely by the chamfering of the topfill cap...so even less reason for jfc during filling. Like i said in that thread and in many threads since, jfc needs to die, its unnecessary in a well made tank, introduces an extra mechanical element/complexity, and often steals space at the bottom of a tank which could be better devoted to knurling or other tactile areas.....id much rather a tank had extra space to grip than blooimg jfc, at least on this its internal...but i bet you i could as i do on my Lemo 2, leave the airflow (and in the KF5 jfc) open and refill it without a leak.
btw the tanks been sitting there for an hour now wide open jfc, no pool of juice on my beloved TreeBox. This thing will not leak if you get the wicking right, ruling out a manufacturing error, bad orings...
The important bit
The vape -
The vape, even using unflavoured is really good, due to the airflow its a little denser than my beloved Lemo 2. Is it as cloudy? Im no cloud chaser, but even i get pretty decent clouds out of my Lemo 2 with my normal mix. With the Kayfun 5 its hard to measure per draw, due to the restriction on it, but someone going past my window ( which i vape right next and i eject my vapour out so i dont set of the fire alarm) just a little while ago said ".... on". I then had to let them down and tell them what it was, and that i dont even drink caffeinated coffee
I suspect when i get a flavoured juice in there when this tanks empty it will be very very good.