Yeah; why?

Sorry, but I cannot see any problem with this, other than an extra bit of effort during assembly/disassembly.

Although, the hinge material idea is trick, and falls under the "Why didn't I think of that???" category. I'll give that a try.

The O-ring idea works well; unless your wing fits flush against the blocks, such as on this Four Star 40. Then, you've introduced some positive wing incidence...