Just got into sub-ohm with a Lost Vape Therion 166. I'm using my previous tank, which is a Kayfun v4. Coil setup is currently 26g x2 prebuilt coil registering around 0.53 cold ohms, and 0.58 hot ohms. After some extended use, the tip starts to heat up quite a bit. I'm sure this is due to the increased power output of the new mod and thicker coil, but is there a quality mouthpiece that anyone would suggest that would insulate the heat better? Or maybe a made in USA rebuildable tank that doesn't get as hot? I'm completely open to suggestions. Thanks!