I had an experienced builder tell me once: "The second aircraft you build will be easier." Today I was looking at the cut diagrams (for about the 100th time) to determine if I had enough 4x8 sheets after cutting out some more fuselage skins. This was on about page 56 + of the plans. I casually turned back a couple pages and looked at page 53... and noticed a 3/4" x 2" cross brace. My first thought was "Where the hell is this located?" and how did I miss this? So looking back to page 3 there are 2 miniscule lines noted at 8" on center from the stern post. The result is a painful reexamine of the frame and then gluing in place of the 2" Douglas fir brace for the rudder trim.
I also taped and varnished the undersides of the top skin and aft rear skin.