[MrForbes]

The Festo valves have very low current draw compared to what a Spike can supply, so you need not be concerned about it for that reason. Just make sure to carefully read the rules and see if it is allowed! also I would think that having both cylinders connected to the same tube with a T would be the best way to balance the air pressure between them. However, that won't guarantee that they will move at the same rate.