RE: Nose hunts to the right?
Set up with a few degrees right tail angle. Hover in rate mode and trim or mechanically move so it will hover and stay put in rate mode. This will now be neutral in HH mode. Do not trim in HH mode or your center will be affected. Trimming on the radio or moving the servo on the boom in rate mode does the same thing. I like to be neutral in rate mode, then when I switch to HH, the gyro knows where true center is. Even as the battery starts to die the center is the same. I had a Belt CP with a EFlite G-90(Telebee) and it worked fine with ESky tail servo.