I have the Phantom FC40. Planning to install an afermarket gimbal for a GoPro. I have been at this for 4 weeks. Could someone please define (in simple terms) each of the NAZA settings: PPM vs D-BUSS (I am using D-Buss) for the stock DJI control transmitter Gain levels with using INH, X1 or X2 settings. What is the INH? What is the X1? What is the X2? How could I make a simple correction for a takeoff that seems to deviate (drift) to the right and down? Thank you.