Who's got good price for the K5 these days? Looks like I need to pick up a new one. One of mine appears to have threading that's gotten messed up. It was feeling a little "gritty" when screwing tank to base (JFC) and after a re-wick today, it won't thread all the way down (JFC closed). I'm pissed to have to replace a Svoemesto that's only 1.5 years old. Never had any quality issues with my previous Kayfun Lites. I've invested so much time in learning how to build this tank, and love the vape, so don't really want to research and learn a new atomizer.