Completed lens nutplate installation on both wingtips. Sue countersunk screw holes in wingtip lens. Added bid to create plenum on fuel vent NACA ducts on wingtips. Enlarged flap cutout on bottom of right wing to match upper surface cutout. Sanded right flap outboard end. Found LOTS of bondo added by factory. Microed 1/2 inch foam to outboard end of flap as basis for increasing span to decrease flap/aileron gap. Sanded bottom of left wing with 150 grit longboard. Almost ready for smooth prime.