Originally Posted by
Dudelsack
I "pre punctured" a cartridge once. They do leak, although its pretty slow.
There's definitely an art to using CO2 cartridges, and it's worth spending a few bucks and learn how to use them in your nice warm home. Like RG said, it's easy to pinch-flat, so to speak, unless you're very careful.
Yes, it's a good idea to practice and it's a good idea to have more than one cartridge with you on the road. Nothing more miserable than being in the middle of nowhere having already spent your only cartridge
