Riveted 2/3rds of the firewall rivets. Started with the squeezer, getting the ones I could reach, and did some more just shooting them. Found it was easier to shoot them then trying to fit the squeezer into place, and squeeze while holding the squeezer at awkward postions. Also found about half of the called out rivets were too short, so I went up a size on some of these. I propped the firewall up and clamped it to two 2x2's that I clamped to the workbench vertically. I'll try to get a picture in here tomorrow.