I built the motor in early 2000's and got sidetracked with tranny build issues, then job, etc. before getting to turbo, aftermarket computer and rear end. I'm retired now and finally getting back into it. I've forgotten a lot so may ask some dumb ass questions and make stupid mistakes. If it was easy it wouldn't be fun!
Yes,the external gate with a compressor and a controller is a great solution to boost control problems. It allows for low boost when you need it and high boost when traction allows it. Much more flexibility.