Hydraulic Motor Temperature

[pugs]

I wonder is a small enough pressure switch could be tied in to run the esc of the pump motor control, thus changing motor speed to just enough to keep the pressure constant?? This would work basically like the one in the vid above but without tieing up a channel.

Could then perhaps also be setup with a small solenoid valve and second relief valve with higher psi setting and have an optional Power Bulge for short periods of time....