Used blue painters tape to block off rivet holes for hinge brackets, 707 and 405 rib locations. Placed rivets in every 3rd or 4th hole thru the 603 bars into the 606 spar, then added clecoes in open holes. The rivets help to align all the holes before clecoing. Used pneumatic squeezer to set all rivets—squeezer makes it so easy to get consistent rivets.