I have the same issue, but I think it's normal. I'm using stardust style clearos on a eGo style battery and it gets hot near the atomizer (closer to the drip tip) and also near the threading where the fire button is. It's kind of the nature of the beast AFAIK. It has to get hot to make vapor, and the more you chain vape, the hotter it's going to get. TBH, when I am chain vaping and maintaining that heat, it vapes a lot better...