This is one area where NOT being PC may be okay. You can keep the co2 discharger in a buckskin bag,etc. I think it is safer and it is certaintly faster. The ball comes out pretty fast. Screwing into a ball obviously destroys it. Some conicals cost about a buck a piece and if you blanket the muzzle while using a co2 discharger, they'll come out without being deformed. They will deform if they hit road pavement, etc.