Today, I spent a bit of time finishing the riveting on the leading edge, the main and rear spars. In addition, I primed and installed the access panel doublers. The only problem I encountered was the RV-1414 rivets that you use in the center section where there are extra spar flanges. They are a bit longer than the standard RV-1412. Out of approximately 50, many of the first 20 or so broke off before they were completely pulled.
