I did not really think that it was a servo problem since I disconnected each servo one at a time and still had the problem with each servo. I picked up another Y harness to day; I'll know in a little while if that was the problem. Sounds like the conscience is that I need to use a Powerbox on each wing however. I do have a spare Powerbox I can try and see if the problem goes away. I'll just have to buy another one for the left wing.