[Nitroxextreme]

As for resources regarding pneumatics, I would say that the best place to start is on CD. Look into whitepages and the pneumatics section. I would have to personally suggest some of the powerpoints that are up there. In regards to getting a hands on insight, look into some of the theater companies around you. My pneumatics knowledge came first hand from an animatronics expert. But again the best way is just to go and try it.

Ok now multi positioning....

My team did multi positioning out rookie year and it worked ok. The only real way to do it is with two solenoids. I personally would not suggest it as a solution for any problem though. But if you are interested in pursuing that route feel free to ask any questions and I would be happy to answer them.