Personally I would like to see a AC45-like boat, one design hull shape, open soft-sail rig and open foils, essentially what Morrelli suggested. Notably cheaper, speed the same, more teams etc. Probably not in the best interest of the defender so unlikely, but one can dream.
What your suggesting is not the format for the AC. The AC is a design competion as Morrelli said. Forget about the one design any thing concept.
