Thats why I use a low pressure 2450psi/85cu.ft steel tank. The air does not heat up as much. With a much better fill then does an AL80. I will have 80cu.ft. even after the tank cools down after a quick fill to 2450psi. The same tank filled to 3000psi will give me 100cuft after cooling down. Air does not like to be disturbed. Air passes threw the 1st stage squeeze point way below 0 degrees during a dive also. Even cold 40degree lake water is actually warming up that air again before it gets to your 2nd stage lips.