Hi All, My Phantom2 (loaded with 10*34 props, Motor Extensions, Large Carbon landing Gear, Zenmuse 2D and Gopro) has flown very well over the last year. It was stable, responsive and silent all the time during many flights. But now, suddenly, there is a very strange problem... After a couple of minutes flying it suddenly climbs to slow, and much worser, sometimes descends to fast with a hard landing at the end! (Flying in Naza-mode, GPS or ATTI mode) Today i discoverd, when i give some Yaw during SLOW climbs the Phantom immediately response with a much stronger climb? Also, when i give some Yaw, during a to fast descend, the descending speed is strongly decreased! Any ideas whats going wrong here?