Spent a few hours finishing the top skins for reveting. Dimpled the last few holes after sanding the forward mating surfaces. Used self etching primer where the two skins overlap. Curled the overlapping skin to get it to lay flatter when riveting. Installed the wing walk doubler. Clicoed both upper skins to carcass. Left the holes for the inboard flairing undimpled and will not rivet at this time. Looks like it will be drilled and have nutplates for screws.