Debur all of the holes in the ribs. 24 to 30 holes on each side, top and bottom times 15 ribs times each side of the hole, I figure that I debured about 900 times. Then countersunk the main spar, more holes. THEN debur the rear spar and even more holes. I did not want to count them all because it begins to look like work. All in all a productive evening.
