Its looking good I'm getting to cover my 182 vut having trouble with the windshield fittment, any how one thing i wish i had done before the center section was fully sheeted was to add a second layer of balsa where the wing mounting bolts go threw the top of the center section to help prevent harsh damaged if the drive slips when tightning the wing.
I was thinking about that as well. I was considering using the same type of sleeves the Magister has in order to reinforce the holes around the skin. I'm hoping to glass the plane so I'm not sure if the extra balsa would help. If it's Mono or Ultra covered balsa, I agree with the protection. It would be a sad day if a hole got punched in the plane after all the work that goes into these.
Do you have any photos of the build thus far?