Thanks. In fairness to the dealer tech, I had the tires replaced right before I went to the dealership, so he didn't see the cupping and I don't know that I told the service manager of the problem when I went for the alignment. A tech on a previous visit had mentioned it to me, and the tire shop noticed it too. From my perspective, I definitely noticed the resulting noise, which is now completely gone.Your cupping was because of the toe. If you look at the before measurements, you'll see that the steer ahead isn't centered. If you translate that to the toe, it means both the left adn right side toe was out. A good tech would have noticed this and made it visible on the printout. Having a bad alignment is a sure-fire way to cause cupping or edge wear on tires.