Hey... I just got my first vapor king kit today. I've been vaping for two months and decided to switch to Vapor4life. I was wondering if you could help me with something I can't seem to find an answer to: I recieved some "cool carts" with my order and they do not screw on to the Vapor King battery at all. The threading seems mis-matched. I can get it to screw on about two turns, and then it will go no further, leaving a 2-3mm gap. Obviously I can't vape this way as the battery is not connecting to the cart. I thought I was doing something wrong, but the blank WOW carts work fine... any help would be appreciated. Thanks!!