I started re-assembling the leading edge, when I notice that I had one of the platenuts on one of th ribs on backwards. Taking it off, I screwed up the primer. I attempted to re-prime and made it look worse. I ended up wiping off the new primer with solvent and calling it quits for the evening.
When I start making mistakes, it usually doesn't get better. I found it's best to stop and continue tomorrow. The odds are that I only make more mistakes if I continue.