I've been having a problem with my iStick 30 lately and I'm hoping someone can suggest a simple fix.
I usually run one of two GS Air MS tanks or a Lemo Drop on my iStick 30. Recently both MS tanks trigger the "Atomizer Short" warning when screwed in flush with the iStick's top cap. If I back either of them out just a tad - I dunno, maybe 20-30 degrees - the iStick reads the resistance and fires the tanks fine, but the tanks are loose and shaky on the 510 threads.
One of the MS tanks starts working fine after firing it for a bit - even if I thereafter tighten it up so that it is flush with the iSticks top cap. The other MS does not correct itself so I have to run it with an AFC connector between the iStick and the tank. I push the slightly adjustable (movable) pin of the AFC connector as high up as I can, mount the AFC on the iStick, then attach the MS tank.
The first time I encountered the problem with the iStick's floating pin was with the Lemo Drop a few months ago. Luckily the Drop has an adjustable positive connector pin and works fine once I screwed the pin further into the Drop's base. However, I had to screw it in far enough that the positive pin sits completely inside of the threads (i.e. the Lemo's threads extend beyond the positive pin). It doesn't seem like the safest solution to me, but it works fine.
Any suggestions? (I've been hesitant to try the 40 TC, as I've had my share of problems with my iSticks...)