I have a new 1.1.1 version which had a bearing replaced in the motor after the motor developed a rumbling sound after a ground prop strike. Replacement went fine all good. Took off prop guards and had a tip over on landing in shortish grass. After that decided to start hand catching on landing. Now on CSC power shut down that motor revs VERY briefly before everything shuts down. I wonder if it's the ECS either due to grass prop strike or due to hand catch engine rev up as the Phantom goes sideways in the hand and as the power is shutting down?