Hello, There are a few other things to look at if the sensativity settings don't fix a tail wag. Look at the slider on the tail shaft, sometimes the tolerances are so tight it binds up and doesn't have a smooth operation. The ball links on the tail holders if they are really tight it too can cause the tail to wag. I always start with tail mechanical operations first, then look at adjusting the TX and gyro settings. hope that helps. Note: It can be hard to diagnose if the slider is binding on the tail shaft really look it over and the ball links and make sure it's really smooth. starcop