After working on the bench today I worked on Scotch briting the skeletal parts of the HS and the the internal skins of the the HS as well. I also smoothed all edges with the scotch brite wheel on my bench grinder. The thumb did not get any grinding today. If you look at the previous entry the skins look more dull than last pictures. Plan to etch and prime these parts with epoxy primer tommorrow. If time permits I will also dimple the skins and ribs.