Hello,
I began flying tricopters a few days ago. After liftoff, I recognized that after a few seconds, the tail servo intermittently "jerks" causing the tail to swerve. It seems to get worse the longer I fly. Attached is a youtube video I made showing the problem. It occurs around 35 seconds and stops at 38 seconds. Any help would be greatly appreciated.
http://www.youtube.com/watch?v=ydKCQyc0Smg
tail servo: Hitec HS-82MG
BMA180 Accelerometer
WMP
Arduino Mini Pro (soft v. 1.7)