Originally Posted by Oni Gumo
Check valves don't really give you more shots, just save you one or two when you empty the bucket. I run one with my twelvies sometimes, though.
Thing is, when you dump a 12 gram, you lose all the air in the gun that hasn't been fired, so the air in the valve, the airlines etc. If you were to check valve directly above the 12 gram adapter, you might get a few more shots off?