[EricH]

Originally Posted by Jeffy

1)It is a smart choice not to carry a compressor,

Warning: Oversimplification. If you're just shifting a few times a match, and you have 3-4 tanks, that's a good choice. If, OTOH, you happen to have a long-throw or large-bore (or both ) piston firing a grabbing device dozens of times a match, on top of shifting and maybe an endgame pneumatic, you're going to run out of air pretty quickly unless you have a massive amount of tanks. In that case, you probably want to carry a couple fewer tanks and a compressor.

2) There are two kinds of motions you can get from pneumatics; linear or some curve using a linkage.

Don't forget using rotary pneumatics. Those are legal under 2013 rules, IIRC.