63M20C

George Perry and Greg D, you both have hit the nailon the head. I don't want to take away from this great site, but years ago when I joined MAPA, there discussion's were relatively more airplane specific. Now, one out of every hundred or so are worth reading.

I guess I should have been more clear at what style I was using, though I am interested in replacing with the vernier style soon. Anyways, thanks for looking up the stc information.

I have a 63C model, and when I purchased it, they were doing the same thing. I was able to tighten then compression nut on the panel for the respective control a little, and it solved my problem. This was over two years ago and it is still working perfectly.

I have a 63 C model, mine is located just inside the tail section, accessible through the large access panel on the pilot side.