RE: Glo plug connector
Very interesting. It sounds to me he's referring to a clevis that is fastened to a control rod and held on the rod with a set screw. The pin is held into the control horn with the small clip on the pin. Myself, I would never use that type of clevis for a control surface, but it sounds like it would work fine for this application. I might be wrong on my theory, but it had me wondering also.
My favorite plug connector is the one made by MPI, it costs about $5.00 and is very well made. It has a nice rubber boot that seals it down around the plug.