Hello I have a Phantom 2 that had a crash (Hit some foliage and fell about 35 metres onto rocks when filming a waterfall), and I finding it is not flying nearly as stable as it used to. It tend to have a lot more small movements and vibrations and just seems much more unsteady in its flying. It holds its position okay with GPS and tried turning GPS off and it still flies rough. The crash damaged the gimbal, probably beyond repair as it damaged 2 of the ribbon cables, broke three of the props, smashed the battery casing, caused relatively minor damage to the shell (Amazingly), and pulled some sockets of the main board.The GoPro survived okay. I got the board fixed okay and put on all new DJI (I Believe) Props, did an IMU Calibration and a compass calibration and reset gains to defaults. Also I stripped of FPV and Gimbal so it is the bare machine. The firmware up to date so not sure what else to do to try and fix it. Any help would be appreciated. Thanks for your time.