I started about 2 weeks ago fitting the aft fuselage belly skin, after finishing the repairs to the dent in the turtledeck. The pre-drilled skin did not match up 100% with the structure, and I needed some hardware. Today i used some long bar clamps to tweak the fuselage a little bit to get the pilot holes for the machine screws at the forward end line up, and drilled and reamed them to the finished size, and installed the fasteners. I fabricated the needed spacers for that end, and drilled them to suit, and riveted them in place. It was getting cold and I was tired, so I quit before finishing, and there are still some pesky fit up issues.