Wing skin and ribs: Got the soldering iron out and stripped the blue plastic off the rivet lines, and dimpled them. This is the biggest bit of dimpling I've done with the C-frame. I'm not as sold on the DRDT-2 that KitPlaneBuilders had anymore. It isn't that difficult to do with the C-frame. After that, I also installed the nutplates for the access panel and dimpled the panel itself. Finally, I also dimpled the ribs where the last skin gets attached, and "touched up" the rear spar dimples with a countersink tool, per the manual.