Today I riveted the two F-695 forward fuselage gussets and the four F-656 aft fuselage gusset plates to the fuselage.
The forward gussets were a bit tedious, as the rivet spacing is quite close, and I had to play musical clecos with the clecos through the forward end of the side skin, to assure shop head access. I squeezed what I could reach and bucked the rest.
The aft gusset plates were a bit easier, though the narrow flange on the "hypotenuse" of the gusset causes an access challenge for the pneumatic squeezer with the inboard rivet through the bulkhead web. Also, I had to shoot the outboard rivet through the bulkhead web with an offset set from the aft side.