I'm wanting to go lower ohms ideally, but its tricky as the subtanks rba is rather limited as to how many turns you can get on a thicker wire.
Atm i'm consdering trying just a 6 strand straight twist (without retwisting) as these seem to be neater than double twisting and might stop the popping issue.
This has started to awake the tinker in me lol.
For my Subtank RBA i use dual twisted 26awg TI wire, spaced and run in TC mode, about 5 wraps on a .25mm bit and around 30-35w at 215C.
Coil looks like: |\\\|