Countersunk flap brace and finished work on hinge. Alodined CS holes. Installed electrical conduit and pitot line with bushings. Deburred lower wing skins and polished edges. Filed and scotchbrited the scarf joint where the skins join at the leading edge. Removed vinyl from the outer surfaces as needed for dimpling. Prepped and installed nutplates for access covers. Dimpled access covers, also. Finally, used pneumatic dimpler to dimple as much as I could reach on the skins.