Small job today was to fit the F-785A backrest brace. The plans call for a 1/8" space between the backrest brace and the baggage tunnel cover. I used two Popsicle sticks as a spacer, clamped the brace to the F-785A angle and drilled the center hole. There was a nice space left at the top. The brace did not interfere with the inside radius of F-705F.
Once the top of F-705F is leveled, I clamped the top and drilled the topmost two mounting holes using center lines that I drew in before placing the brace.