Gathered leading edge ribs and cut 4 of them to create ribs 1L, 2L, 1R, and 2R. Test fit them to spar, all is well. Final drilled #30 and #40 holes in all ribs. Scuffed mating surfaces on left tank skin, put slight bend on leading edges then dimpled tank skin with Loris help. Managed to not screw up tank skin. Countersunk fuel cap flange.
