Taped area to be scarfed on right inboard wing skin. Plan to file that area tomorrow night. Woked on some misc. items that needed to be finished up prior to riveting skins. Machine C/S pitot tube mount to mate with dimple in skin. Had a couple of ribs where the little tab on the end was not sitting flush against the spar—very hard to push it down while holding the bucking bar, especially in an area you can’t even see while riveting. Borrowed a tip from Brad Oliver’s site—put a small dab of JB Weld between the tab and the spar and clecoed together. Hopefully, tomorrow when I remove the cleco, the tab will be stuck to the spar in preparation for riveting.