Drilling 404 and 405 inner ribs. Very close on the edge distance despite me taking my time and doing a lot of research. Even though I tried, i should have trimmed much less of the inner tabs. I also should have made sure the ribs where perfectly square and pulled out the same distance reletive to the skin. All in all they are fine I just wish things would have looked a little better. My angle drill would not fit so we used at 12" 40 then went to the 12" 30 drill bit. Match drilled skin holes. Took it all apart. Debured all of skeleton. I cant believe I didn't take any pics. Probably a little to focused on the task at hand. I've included a later pic.