Update!
Been silent for a while, and with a good cause.
Tried 26g ni80 7twist 2,5 ID coil, came out 0.67 ohms, vapes like a dream in my oxva solo.
Can't say I regret at all. I was fixed on the battery life at the beginning thats why I was so obsessed with ss316l, which gave me rougly 1,5-2 days constant vaping, 400-600 puffs on average 2-5 secondw draw. Now with ni80 its almost a day 200-400 puffs.
The difference with ss316l is that I get so much more flavour out of the vape and I vape a lot less because each draw is so mich more satisfying.
After 500 puffs decided to take open my tank and see what was going on. The wicking was just slightly brownish on a few parts on a microscopic level, so the wicking can handle easily another 500 puffs, coil was slughtly gunked, no burnt hints in the draw still. So I'd suggest the coil could go another 200-300 puffs until I would have to change. The flavour has settled back a little, but it doesen't bother, the draw has become smoother and taste a little rounder.
Haven't cleaned the ni80 yet but I bet it's way easier then ss316l and it's way more re-usable. Ss316l I managed to reuse only starting from 26g because I tried pulse and clean the 28g and as I was almost about done cleaning with the last pulse it interwire shorted on me, totally over heated one section in one leg, so I trashed it.
Ss316l, I have re-used a coil while it did once a short like that, can't say it changed much only that the coil gunked up twice as fast after that burntrough. And I don't consider re-using ss316l wire that has been heated to glow temperatures, a healthy practice anyway.
Conclusion.....the battery life I win with ss316l is far outweighed by the flavour and experience I get from a ni80 coil, plus the wick and coil life seems to be triple or quadruple in favour of ni80.
A dual battery lasts me for a day easy, so the benefit of battery life I won with ss316l was thwarted by the constant toil and trouble of changing wicks and coils, usually the re-use succeeded in 1/3 attempts.
Will I drop using ss316l - not entirely
Do I prefer ni80 to ss316l - definitely, since I have no allergy towards nickle
The clouds from this little chamber with ni80 coil compare to a dual coiler that almost puts on as much clouds as a mini version of a mesh rta would.
If I'd want I could install a 24g wire with lower ohms and put in, let's say 80vg/20 pg, but will the wicking keep up, since the ports are quite narrow and by the juice thickness at hand, the bubbles seem to have a hard time emerging beneath the chimney.
I am further astounded by the capabilities of this little chamber rta, which can handle a lot and very versatile builds.
Hypothetically you could blast humongous clouds with it, reaching almost to a dual coil rta, and even surpassing some builds on a dual, in regards of cloud-chasing.
My next experiment is planned with kanthal wire, the same gauge ID and twists count as the ni80 was, really excited about trying it out.
Peace!
