The rivet call out for the F-850 Forward Bottom Skin to F-836 Ribs gives an option of using MK-319-BS pop rivets in place of solid rivets due to the tight space to buck. I have frequently used these when the hassle factor simply exceeds my threshold!
However I am pleased that in a rare moment of inspiration I thought of pivoting my back rivet plate on F-802K LG Fwd Cross Member (Blue line) with one hand and riveted with the other. Worked a treat.
