[ngreen]

Leo,

If you applied the 60 psig to each side through both the solenoids wouldn't the cyclinder just continue to slowly extend since the forces won't equalize out?

Also if you shorten the tubing from the double exhaust to the single you should not have trouble getting 30 psig for port "P".

I believe reducing the regulator to ~55 psi will take care of the 60+ psi problem. You have to give up a little strength for control.

These are just my thoughts. Have you tested that circuit yet? Just curious to how well it worked.