One odd note about this: the guy who handled the order at Tirerack was adamant about reminding me that the tires did not have the XL load range that the stock Goodyears have. I assured him that it was ok; I'm not doing autocross; I don't drive 3-digit speeds. Nonetheless, he informed me that they would have to fill them to 36 pounds. So they arrived, mounted on the 16 inch rims, with 36 pounds of pressure - which made the tread bulge in the middle. :S
I, of course, took several pounds out.
Apparently Tirerack thinks that the ST has enough power - or enough weight - to rip the new tires apart. Their legal department seems to think that they have to overfill a tire to cover their rears, even if it means delivering a tire to a customer in a condition that no sane driver would use.