It is awesome to have an expert riveting buddy. Chris is fast and we almost don't even need to talk we are so in-tuned with each other when riveting. Shannon even helped out and fed rivets while Chris bucked and I had the hammer. 2 hours to rivet the whole thing together. All the open places are intentional as the forward bulkhead attaches to the center fuselage and the sides need flex for the longerons.