How to make Pneumatics use less air

Is there any way to make a pneumatic cyliner use less air? We don’t really need the force, we just want to extend it all the way using as little air as possible. How can we do this? Perhaps with a double solenoid and then a single solenoid after it on the extend line?

Check this thread:

http://www.chiefdelphi.com/forums/showthread.php?t=25376

There are some good ideas there.