Deburr, then dimple the #30 holes along the top edge of both F-1070 Mid Side Skins and along the forward edge of the F-1074 Tailcone Forward Top Skin which are common to the C-1001 Cabin Cover flanges. Machine countersink the holes in the cabin cover flanges deep enough for the dimples in the skins. If your countersink cage is too big and interferes with the joggle on the flanges, make a spacer out of scrap 0.032" aluminum. Drill a hole in the spacer big enough to clear the cutter, then adjust the countersink cage for the correct depth accounting for the thickness of the spacer.
Center Arm Rest
Geoff installed the arm rest cover and hinge assembly to the center arm rest.