Well I sent the bird off for repair and they sent me a replacement stating that it had been test flown and was fine. I ran one battery through it and hovered it in the garage due to the winds - everything checked out. On the 2nd and 3rd flights I am getting a sudden twitch in the tail rotor. It sends the nose around by about 30 degrees and then snaps to a halt. Seems like a gyro issue. Any help?