I've been flying my BCP since January and have had no problems with its performance. Lately though my tail seems to be way out of control. I figured it was time to replace the tail motor, so I changed it out. But the problem still exists. While flying you can hear the tail motor rev up and down continously and I get a lot of tail wag. No matter how I adjust the gyro and the proportional pots on the 4 in 1, I can't get it to settle down. I know how to adjust the tail rotor pots on the 4 in 1 as I have done it many times, but in the last couple weeks, I can't get it to stop wagging.

So... could my 4 in 1 be bad?

Thanks.....

Doug