Primed the bottom skin and some misc parts from section 26. It helps that it is 90+ degrees out as the parts dried quickly and I could start assembling them almost right away. Had an issue with the spray gun striping and not making nice smooth coverage. By the time I had the gun issue fixed, I was out of primer so it looks a little streaked but it's all covered adequately. The bottom skin doublers and stiffeners get back riveted to the skin - no issues.