I have the UP 3 valve on the retract and doors, and one for the 5 way valves on the canopy and brakes, if I had to do it again I would have probably done it with electric valves and used the sequencer in my radio. I have had to change a few air cylinders though, as there were leaks in them, gave a right headache for about two days trying to find the leak.
Mine has still not flown yet...ever, I brought it second hand unflown, had to do a lot of changes to the install that someone else did.... no I am happy with it, just need to do the CofG and then test fly it in a few weeks hopefully.