OK...this over heating problem has become even stranger. I got another gunmetal 1.5 and the same thing happens. After maybe a half-dozen hits, the barrel gets extremely hot, too hot to vape. I have a black 1.5 running at 55 watts which is 10 watts higher than the gunmetal and I just hit it 10 times in a row and it's barely warm. I tried the black barrel on the gunmetal deck and it takes a bit longer but it does get hot. I've also tried the black one on the same mod as I use the gunmetal on and it does not get warm even. I've pulled it apart completely and gave it all a clean. I'm using the chill version of the mesh wicked with rayon. The wicking is not an issue. I'm not getting anything like a dry hit. I have no idea why this is happening so any suggestions would be appreciated.