John,

Don't have the answer for you, sounds like between your own obvious common sense and a multitude of "possibilities" by other RCU folks the problem can't possibly continue to exist !!!!!
So, that being said, I have a good running Evo.61 on a Senior Telemaster and want to know what to do when it decides to give me fits. SO, DID YOU FIND THE PROBLEM?????????? Hope so.
Dan