Don't know why you would assume I haven't, Bacciagalupe-- their read on it was either design or manufacturing error. I'm trying to get a sense of which from other owners.

Good point Maunakea-- it is the seatstay that I meant. There's a little divot that is clearly meant to allow for clearance, but it isn't doing the trick.

The wheel looks centered when I eyeball it, and there's no brake rub problem. Perhaps I don't completely get the concept of dish, but wouldn't there be brake rubbing if it was a badly dished wheel?

I'm gathering that others have not encountered this problem, which is somewhat comforting.