Riveted the remaining bulkheads. Reassembled the bottom skins, bulkheads and stringers. Once I finished I realized that I forgot to break the side skin edges that overlap the bottom skins. I'll need to remove the side skins because I can tell just by looking that the edges need some work. On my past projects I simple used a piece of hardwood with a slot large enough to slightly tweek the edge. I think it looks much better than the edging tools taht leave a visible break.