Worked on "fit and finish" adjustments, edge finishing, and started dimpling ribs and countersinking spars.
Removed the protective plastic from both sides of the skin and discovered that there was some "corrosion-like" blotches at the inbd end. Clearly visible in the first two photos. Worked on this with a combination of ScotchBrite and METAL polish.
Of course, the inside surface with also be primed with Sherwin-Williams GBP 988 Self Etching Primer. Photo #3 shows a clean and acceptable finish.
