Okay guys I've recently acquired an hcigar VT133, have been having mixed results with it on TC for 316L. Only when I do exotic coils does it work properly, right now I have a 6 wrap 22g at .34ohms locked in, and when I fire it, it says "OFF" where it should show temperature. But when I have say a clapton coil, it will rise to the set temperature and stop. Any help guys? Thanks and much love.