your iStick 30W can handle min >0.5ohm without any issue.
so if you want to wrap 1.2-1.8ohm coil ...is fine and workable on your VW mod.
assume your best diameter on Subtank RBA head is ø3mm.
so you may need Kanthal A1 28AWG wire
7wrap ø3mm is
1.5ohmor Kanthal A1 26AWG wire on
11wrap to be the same
1.5ohm resistance.
26ga/AWG ~ø0.4mm is thicker and harder...
more wraps means need more room(deck) to place and more ramp up time(power)...
I think
Kanthal A1 28AWG ~ø0.32mm is more common to use on this 1.2-1.8ohm range...
and it's cheap like
SKU 2675100 10M wire can built around 80-100's coils which should be good enough for years...
you just need some
cotton wick like
SKU 3417200...and
ohm meter like
SKU 2367601 to DIY
vape safe mate :D
Edited on 11/3/2015 at 4:45 PM. Reason: add link
SMPL, eGo AIO and Pico with SS316 coil is my daily combo on 2016.
I Quit smoking for years and very enjoying vaping MaxVG now @YVR...
Vape safe mate:D