Raptor 90 Sloppy tail.

[Nasri.Saade]

In the past i used a jr 9303 radio but upgraded to a DX8, since the first time i fliyed my raptor 90 with the dx8 when i move the rudder the raptor 90 tail move in a pendulum motion and after 3 or 4 moves, it centers again. when i am just hovering i dont have any problem it start if i touch the rudder. I am relatively new and cant figure out how to solve this problem. Any help?

[ticedoff8]

My first thought is the DX8 gyro gain is different from the old radio.
From your description, the gyro gain might be too high.