FWIW, I don't consider a wrinkle in this type of surround a problem.
No argument here GM, i realize what the function of the suspension is, and that so long as it's function isn't affected, cosmetic issues are purely that. But, in at least some cases isn't this an indication of the cone likely sagging or warping?

On at least one wrinkled 411 surround that i've visited in person, the wrinkle seems to have been the migratory destination of the surround sealant when it gave in to gravity's influence.

Regardless, i have a mental disorder that prevents me from accepting things that do not appear as the designers/engineers intended them to be(a smooth, uniform, half roll in this case).

Fortunately mine are of the later variety with foam. I've considered picking up another pair for a "sub" project, but would like foam surrounds. Out of sheer curiosity does anybody know if the surround was the only change between the two types?