i know it as probably already been done. i was thinking about hooking up a 3000# or maybe even more pressured bottle of nitogen or co2 to the air port with a regulator in the middle but no check valve. set at maybe 200 psi or something. that way, you always have the pressure you are set at. but have any of you guys that normally run a competition block with an air valve do this? if not then why?