Well I was preparing to dimple some more of the wing skins. This made me realize that I had inadvertently dimpled the inboard rib in places where I shouldn't have. So I got out the flat dies and squashed some of the dimples out. They didn't squash out completely, but it should be OK because these holes will be drilled and dimpled for #6 (or is that #8) screws for the wing gap fairings.

After that, I dimpled one of the main skins.