I am running 10psi which at first was using my fantastic twin boost solenoids trick but have since got me an R32 actuator.
I think I hit R&R once but cleaned the AFM and have had no problems since.
RB25det with R34 smic, RB20 actuator, Stock Turbo, Stock ECU (I think) and 3" Cat back exhaust.
^^^Looks like you have it hooked up right^^^
Try running a hose from the cooler pipe to the actuator to get back to 7psi and put the boost T in your glovebox til you need it.