Using the gun and bucking bar I riveted solo, starting at the aft end of the section and moving forward as per the plans. I started with the center rib and then alternated to the left and right as I filled in rivets. Was able to do all but the four most forward rivets on the top of the section.
Turned the cradle around and used the same pattern on the bottom of the section: aft to forward, center out to sides. I was able to set all but the one most forward rivet on the bottom by myself.