I think the istick is really nice. It just didn't work for me using (for example) an EVOD clearo with a 2.5 ohm coil (factory). That was with MBV 50/50 liquids.
You've got my curiousity. What wasn't working? I'd like to work within this range of stuff up to 2.5 ohm if possible. If the istick won't perform in those paramaters, maybe my interest will wane.

. They did move to CD's and I had one specially made when I found a fairly major bug. I forgot what the bug was but they sent me an update CD with "KTMRider's Build" which was cool in a nerdy way