I've been doing the same 2.5mm build with 28g kanthal on a kanger subtank mini for 3 years, but I bought a few Wines for the vapocalypse box in 2016. Decided to bust one out and build on it, but I can't even get the legs of the coil clamped down tightly. Does the wine have a limitation to 26g wire or thicker, or am I making some strange colossal error?