This evening I removed all the stiffeners, etc from the firewall and deburred them. I was planning on deburring the firewall, too. In preparation for that I noticed one of the engine attach holes at one of the corners of the firewall was slightly wrinkled, so I thought I'd use my squeezer with the flat sets to flatten it out. Well my longeron yoke was MIA. I looked for it for ~20 minutes, got frustrated, and went upstairs to read the forums on Van's Airforce. That dang comfy chair in the computer room put me right to sleep, so that pretty much ended the airplane work for the night.