Hello Don! How are you?
Luckyly this is not a question about CG
... but about servos.
I've read an interesting post here on RCU about servo centering capabilities measurements, in particular how those capabilities get lost in time, due to servo pots and gears wear.
In my new plane I was planning to put some JR servos on alierons, but those servos have been used for about 3 years of weekend flying, in a mini F3A plane, with a 4 stroke engine. Puzzled by this measurements, I put a 8" music wire on a servo arm and run 9z servo test on them: actually, a quite evident slowdown near center was present. This is an indication of the need of pot replacement (this is a procedure suggested by Troy).
The question is: do you think this is a good test for servo pots replacement? Do you use a similar procedure? And what about gears?
That's it! Thank you very much for your time, as usual!