Thanks for the reply. I have since tried to isolate the FC board even more from any vibration that the motors may be creating. I will do some investigation on the possible motor bearing issue. As you can hear in the video, there is a noise that is not consistent with wind noise but does seem more pronounced with higher throttle. I have since also flipped my CC3D over and will plug the ESC's directly into it to eliminate the connection via female header pins to the PDB. I was worried that this type of pin connection may be to ridged and may also transfer vibration. I will correct the virtual ROLL to reflect the change in board orientation that I have made and give it a test flight. If that does not have a significant affect on the issue, I will have to conclude that I may have a damaged board.