Well I've flown the Phantom a few times now with the new T-Motor MN2214-11 Anti-Gravity motors, and I really like them. Even with all the added weight of the GoPro with waterproof housing, gimbal, bec's etc, It performs extremely well. I am using 9" carbon fiber props too. The flight characteristics are so smooth and responsive, I don't think there is anything about this setup I would change. I am looking forward to FPV flying, if I ever get my FatShark kit. I am using the gains that DJI recommends for the FW330, I'm not sure what the original Phantom gains were. On a side note, I have replaced all 4 of my esc's, after that one caught fire, and I don't get that high pitched whine anymore.