I got an earl shipment of the GSA-28s autopilot servos from Midwest Panel Builders, so I decided to install them. Installing them was, as with all things in the controls area, something best done by someone with much smaller and more nimble fingers than mine. I admit to losing a washer somewhere between the bottom skin and the spar. I imagine it will be there forever. Figuring out how to install them was easy, but getting my fingers into where the nuts and bolts went was tough. the pushrod was easy on the GSA-28, but it was once again a pain where it tied into (inside) the alerion bracket. I spent a good 3 hours (ok, honestly? It was a bad 3 hours) trying to get all the washers lined up and installed. My plan for the next time I need to do this trick is to use some string first and thread everything together in place, then push a rod that is thinner than the bolt from the non-bolt side (call it the nut side, I guess?) to get everything mostly lined up, and then us the bolt to push everything back out to the nut side, pushing the rod out of the way, the string out of the way, and all my troubles out of the way. It sounds good, we'll see how it goes the next time I have some pushrods to install.