[spacepenguine]

As far as I an tell, there's nothing in the bumper rules that prohibits that design as long as the plywood is 5" high at all points and the top/bottom edges don't exceed the bumper zone (2-10"). Practically, I don't see a reason for it to be illegal as those bumpers will still make contact with another robot's correctly constructed bumpers at all points except the front opening (which I suspect will be common this year anyways). From a practical standpoint, it might make more sense to make the bumpers as 5 different sections (2 low sections, 3 high sections) or with hard edges instead of the curves. Either of those modifications shouldn't change how it is ruled though.