Unlikely to add anything. Looked at what GM did with the Buick GN turbo thinking using PWM for the solenoid would work by mirroring the CCP or EGR logic. But the GN is basically a somewhat dumb system. Boost is turned on if air flow exceeds 75 gm/sec, and there is progressively less boost applied in 3rd and 4th gears. That's it. Not worth it. And talking to GN racing guys, they seem to favor removing the actuator from ECM control while keeping it plugged in to avoid a code, and using one of the available mechanical pressure solutions, sometimes even over the electronic.