Had a frustrating day installing the autopilot servos, I thought it would take me about 30 mins. to install them. Three and a half hours later, with a whole new language of words invented, they are now installed. The problem was the lower bolts, no room to move and unable to see without standing on your head. The much younger agile fellows at the factory probably do the job in 15-20 mins., but not me. I did notice KSC did not offer to have a go, but quite wisely decided to stay away.( out of ear shot was also a very wise move ).