I finished up the day by removing the top skins and wing walk doubler, devinyled and deburred the interior surfaces, and scuffed and cleaned the interior rivet lines. Insead of using dry scotchbrite and cleaning with naptha as I'd done on the bottom skins, I took them outside and used scotchbrite and Dawn soap to do the same thing, only in about half the time. It got too late to continue, so next time I'll have to prime the interior rivet lines and do the scarfed corners.
Left top outboard skin scuffed and cleaned, ready for primer.
