So I was tinkering around and I've been vaping on this single coil I built on my igo l, really love it produces lots of vapor and has great flavor it's a triple twisted 30g nano coil and I was going to put duals on my helios well I did and they both seem to heat up fine but after a few fires I could feel my bottom button getting warm so I immediately stopped and took it off. They were coming in at around .3 and I was using it on my kamry k100 with Sony 30amp battery I couldn't see any visible shorts any ideas?