Well, one man's junk is another man's treasure , as they say.

I've just seen too many airplnes crash with these things, none of them mine. So, what's the trick to keep them tight to the servo arm so they don't wobble around, or is a tight neutral not a biggie. Certainly you don't use them with digital servo's, or do you??? And none of you has ever had a rod slip, or an unexplained trim change??