I just ordered their 510 kit and their PCC case (looks much more awesome than the Joytech PCC -carries much more and more power) -has anyone used these products yet? I just read that their 510 batteries and chargers might be reverse polarity from genuine joyetech? -if so I will have to mark them and be careful. I am also wondering if their PCC will charge either type of 510 batt 
I contacted the Kingpin company, and they stated that their 510 equipment is totally compatible with all 
