Bent the side skins where they overlap on the bottom at the F-706 bulkhead. Clecoed skins back on and worked curved flap into place. Before this, I clecoed F-623 corner rib and straps in place. Lastly, I clamped, drilled and clecoed every other hole in longeron on one side before running out of time.
Backdrill and cleco scrap angle, clamp skin along proper line on bench, then bend
Came out well. Some parts dimpled in advance, hence gap