I've only been trying a single coil build using various sized posts in a coil wrapping kit that really is useless with the 28 gauge Builder's Choice steel wire I've got. I gave away my kanthal a few weeks ago so I'm stuck with this for now. I've tried diameters 1. 5 - 2.5 with different numbers of wraps both contact and spaced. I've been shooting for around 1.0 ohm but I'd be happy with whatever doesn't blow up my battery.
The picture is really hard to see so I also uploaded a vid of me pulsing the coil. I honestly don't know if I'm doing anything right at all and I'm afraid to actually try vaping with it because I can't get the atty to read on anything.
Vid:
Dropbox - 20151231_165500.mp4
The picture is really hard to see so I also uploaded a vid of me pulsing the coil. I honestly don't know if I'm doing anything right at all and I'm afraid to actually try vaping with it because I can't get the atty to read on anything.

Vid:
Dropbox - 20151231_165500.mp4