I plan to remove the rotor head, and spin her up again.  If that dosen't work then I am planning to do the same on the tail.  It could be the bearings, or one way bearing but they seemed ok  really have no idea and it's very irritating, I haven't flown in two days.  The only thing I have done is the upgrade to the helical cut gear on the motor, and main shaft.  </p>

I am also going to try to check the rpm, I don't think it's that.  man it's irritating! </p>

It's not the Gyro but it is affecting the gyro </p>