Flyboy Dave, I would bet the you use good quality switches and gear. I quit using standard switches in my planes and went to the Relia Switch from Fromeco. Guess what, have not had a switch failure since.

I learned my lesson years ago about using quality gear. I don't buy the generic or less expensive stuff anymore. I also learned that when you mix connectors that are gold and not gold that can do funny things to your signal. Now I make sure all my servo leads have gold connectors in them as well as extensions etc.