Dave,
Thanks for the info on tanks and heat. I had it filled a few days ago and it did get slightly warm, but not hot. Since it was filled at a dive shop, they could only put 3,000psi in is, when I get home to fill the gun, there was only 180 bar (2,611 psi) available, so something went wrong. They didn't like that idea of filling the CF tank and said it was dangerous and I should stick to aluminum tanks.....everything I read says different, and this tank is new.