Shaky and stirred

Had set the D too high. Which made to quad fly smoother overall, but when in airmode and I cut throttle back and let the copter float, you could here the motors making this scratchy cricket sound. Motors did get warm, but certainly not hot. Had to lower D quite a bit, but now the vibrations are back. I'm sure I will get it right one day, though buying a new frame will be the best solution, there is the possibility there is just no perfect tune for this frame. The bendy arms make it very difficult to tune properly, specially with a little wind.