Jackie and I installed the leading edge/spar web 470 rivets. I did this solo last time but this time I wanted help. It was easier for each person, but for some reason we still didn't manage as good a job as I'd hoped. We had to re-do several rivets and we some small smiles on the spar web. My knee gave out part way through and I collapsed in a big heap on the floor. No idea why, but this is similar to an 'injury' that I had last year. Immense pain!! We carried on though, and got the job done; obviously it took longer, but I hate leaving a job half done. While we were at it, we also installed the K1000-3 nutplates for the inboard tank attach bracket. Oh, and I also installed my custom bracket for the Angle-of-Attack tubes, which I'll take a photo of once I get the wing off the stand and the tubes actually installed.