Align GP750 on my Trex 450 suddenly started wagging. Please help

[Three6ty]

Could have been the tail output shaft not allowing free movment also worth looking at the brass inserts on the tail grips as locktite gets on these all too easily and does not allow completely free movement causing the gyro to over compensate.

Have you still got the original tail box.

Worth checking if it allows the slider to move as freely as the one you are now using??

Hi,
It was just the hub that the grips screw in to. One of the grips was loose and when I tried to tighten it back up the screw just kept spinning so the grip would always be loose. All is well now.
Cheers, Rich