One if the items on the to do list that I was avoiding was to open the two #30 holes in the F-796B angle to a #12 hole to allow the AN3 bolt on top and a #10 screw on the bottom. Being that not everything is permanently together, I opted to open the holes to 3/16" to get a tight tolerance. I can always open then to #12 later if needed.
I used my 3/16" reamer and by ATS drill guide. Turned out excellent.