Spent the weekend working on the lower aft fuselage, Discovered that the prints are not very clear about which parts to use - or perhaps I needed to pay more attention? I installed all the lower aft fuselage parts and then I discovered that I have to install different parts because I want the lowered seat mod, dual sticks, and center mounted brake and flap controls. Since I installed the parts for the normal seat, I had to replace a couple of stiffeners, cut out another hole for the elevator control, and move a couple of other parts. Essentially, I spent Sunday correcting all the things I did wrong on Saturday.
In the end, I have a few extra holes but I don't think I reduced the strength of anything important.