[KevinB]

Whether or not the pneumatics will hold their position after a match depends on how the actuators are connected. If they are controlled by a double solonoid valve, they WILL hold their final position after the match ends. (provided there are no significant air leaks).

Cylinders controlled by single solenoid valves will return to the default "off" position when the match ends. (note that the default off position might mean extended or retracted, depending on how you connect the tubing).