My friend Randy (Mechanical Engr) stopped by and helped me get the top wing skins ready to paint. We finished match drilling the holes, counter sunk the wing walk area, and deburred. After sanding a taper on the top of the inboard skin and bottom of the outboard skin where they overlap, the skins were dimpled. The four wing walk doubler plates and the J channels were alumipreped and alodined. All is ready for epoxy primer Monday.