The web-site claims that the shape is modeled after a symmetrical airfoil. The distinction between a wing an a foil is lost as this balloon is trying to act as a wing. Somewhere along the way they forgot that a wing has camber and twist to provide lift. It is not symmetrical. This “shape” is more like a big fat keel that derives a small amount of lift by angle of attack. No wonder it looks like it is standing still trying to go up wind.
Looks stupid. When heeled the airflow will be across the corrugations, which cannot be a good thing. Looks to me, in the stupid brochure, that the Laser with the plain sail is higher and faster than the so-call miracle sail. And in the same pic the heel angle looks the same which does not support the claims made.
How do you stow it away when you are done with it? Pop 30 odd sections times two one by one? And how do you inflate them back again for an afternoon sail? Yes we can be seen as a mashocistic lot. But this re defines the meaning of it.