You probably won't find a spring piston that's as strong as springs you can buy. This is mainly because the spring tension is reset by the compressor pushing air into the other end. Air pressure can only cause so much force. You can honestly find springs a lot stronger. Also spring pistons take up a lot of space for a small stroke length. The stroke lengths are shorter because about a third of the room in the cylinder houses the spring. The final problem is that spring pistons don't really shoot out much faster than a normal piston. This is mainly because the spring still has to push out the air that pushed it to its stored energy state. Basically the only thing I think they're good for is that it saves air pressure because only one side of the piston releases air.
Then again you should check to see yourself. Don't believe everything you see on Chief Delphi. Though its a good resource, you should do your own research to make sure. I'm pretty sure I'm right but you may find a spring piston that works awesome for this game. See if you can shut me up
