I started the day to route the pitot and AOA tubing to the back of the fuselage. Long story short I felt that I needed to install the last two seat ribs to ferritt out running the tubing through the manual trim hole in the main spar. Don't know if that is the way that I am going to go but I installed them anyway. I had those two ribs in and out so many times my head is spinning. The seat rib is interferring with the main spar bolts. Main spar bolts win. Took way longer than I thought.
