Hey thanks for the reply, what is or was happening is after about 30 seconds it would just lose heading control and require full yaw imput to correct.The tail was perfect no wagging. So we tried a new g90 and all is good so far and just got a DX7 so I think we might have it whipped but this problem went on for a few days. Have only flown 2 batts so far but it is holding great, the first G90 only had a few hours of flight. Thanks again.