The riveting went well until we reached the the third and second bay from the wingtip. My arm wasn't long enough to go through second from the top rib hole and reach the rear spar without holding the bucking bar by the finger tips. I could not hold the bar against the rivet with enough force to keep the bar in contact while riveting. Therefore the rivet shopheads were not correctly formed (at an angle and not flattened enough).
After trying a homemade extension for the tungsten bar without much luck and starting to damage the skin by too many impacts, I gave up and drilled out 4 rivets. I had to enlarge the drilled out holes to #30 and then filled them with Cherrymax blind rivets (CR3212-4-3). It made for a clean, flush, and strong joint. We spent 3.5 hours riveting and correcting the problems.
