I have a Majestic Turbo upgraded turbo and ported wastegate.
Everyone seems to be running 0-3 gain, which seems like it slows the response down too much. Also, it seems like this would keep the controller from making corrections quickly.

I am going to the dyno soon and need to get the controller set right so I can work on fuel at the dyno.

My current settings are

start boost(set gain) - .34 or 8 psi
Gain - 3
Duty cycle 30%

This gives me about 10 psi

Thanks,
DMC