I had feathering on the outside edges of the tires on the OEM Verdes. Reviews will show this is a common theme with the original Verdes. I had the alignment checked twice by a local shop I've used for years on all of my vehicles (Hunter equipment). In spec both times. This started at about 17K, and was the source of the loud road noise. I've never experienced SWS. Tires were shot at less than 30K in mixed driving. Replacement Bridgestone Alenzas are wearing perfectly 20K in.Out of curiosity do you mean cupping (scalloping), or feathering?
This isn't the first time I've had Pirelli problems. I had wear problems on a G35 coupe. Same story. Alignment always checked out in spec. These weren't the OEM tires. Filed for warranty. Denied. Pirelli for me isn't an option anymore.
Best wear and performance I've gotten on SUV tires - Michelin Lattitudes. Excellent highway performance. Mediocre A/S snow performance.