Re: What determines CO2 use?
for the sake of spyders the O-rings, and even then only the orings that are static sealing.
Now we can take it to specific uses with your own spyder and how you setup your gun like i've heard that evil detonator regs are not so CO2 to friendly and i'm going to guess its because of its design and the o-rings used. While a palmers stabilizer is more than happy to use CO2.
BTW is your NDZ asa a quick flip??