Per instructions, re-installed F772 skin and match drilled it to lower longerons, fuel tank doublers, basically a bunch of stuff.

I couldn't find anywhere in the instructions where it called out to drill the side skins to the lower longerons, but that obviously has to be done before you can match drill the F-772. Gary at Van's suggested that I drill a couple of holes through the side skins and lower longerons, then slip the F772 into place, cleco, and match drill everything else. He also suggest that I trial fit the F7114 fuselage gusset. It never does really tell you when to put this in either, so I elected to match drill it as well. Hopefully this is a reasonable course of action, as it will make it easier to deburr everything.