RE: Interesting problem ...input invited
Just a question.....
Are you using EZ Connectors at the Servo ends.. esp. elevators ? (the wire to the EZ connector only)
I had to CA mine when it did that on 72mhz of course they were already set up and had been used some.
When I got home I changed them out and went standard clevis soldered on.
Problem of mine was gone and hasn't come back in over a year.
Cheers
DinD