I used my pneumatic squeezer to set most of the rivets alone the F-728B Stiffener. There were a handful of rivets towards the bottom of the stiffener that I couldn’t get to. I’ll come back to this after the position of the fuselage has been adjusted closer to the ground.
I don’t have any great pictures, but I finished riveting the F-656 Gussets. The gussets that attach to F-706 need to be flathead rivets. I can see how a lot of builders would miss this detail.