I know most of you do not like to rebuild coils, and that's a big concern about rebuidable
tanks. But the thing is I have not seen so far so intense flavour and
vaping quality as with some RBA and RTA... and they are prepared to be recoiled by the user...
But even those clearomizers which are not intended to get recoiled, and instead they just change coils with stock pre-manufactured ones, you can toy with them. I have almost forgotten my stock coils for my Kanger clearos, they were bought just in case, but I always recoil the heads with cotton, fiber and nichrome wire. I give up on dual-coiled heads, though, they're not worth the time in the more difficult process to get a twin coiled head.
But even with a single coil my Kanger Protank and miniProtank 3 heads works flawlessly, most of the times they even surpass the stock Kanger manufactures, and in that way I forgot the nuissances of calculating the cost of anything. Fiberglass wicks, cotton and nichrome (or kanthal) wires are really inexpensive. The rest is your joy, as in any other hobby.
Last experiment was fueled by some Youtube videos in which some guys are recoiling Aspire BVC's and Kanger dual coil heads... with BVC coils too. And I can assure you, my miniProtank 3 heads now rocks! They are more or less equally hard to recoil horizontally or vertically, but vertically it seems there is some advantages about flavour, not so bigger in vapour production. It's soon to talk about endurance of the coils, but I hope the best, because now, when the coils get gunked, the gunk is outside the air pass, so I really hope for the best.....
I do not know if you know this, but it is possible (beware the long-sightedness people like me, though, you might need a good magnifyier glass.....):
Kanger Vertical Coil Easy Build / Rebuild - YouTube
Rebuilding a Kanger Protank 1 or 2 Head Vertically - YouTube
Oh! And in this very same forum:
http://www.e-cigarette-forum.com/fo...d-aro-evod-protank-heads-43.html#post14228621