Anyone else having this problem... Options

[Smiles98]

So i got some Dunlop Direzza Z1 tires for the Celi 205-50 R16. had the car re-aligned within a week. Anywho they ran fine for the first 2000 miles then the car started to rumble and I shrugged it off (because of a different problem with the harmonic balancer). When I was rotating the tires I noticed really bad cupping on the inside of both front tires. I checked they cant rub on anything, struts are not great but still pass the bounce test, properly inflated tires. One thing I should say is that the cupping starts on the lip where the tread grooves are. The only thing i can think of is that the tire is too squared off at the lip and the cornering is pealing off the rubber. any other ideas?

Too late to take a picture.

[Xander_X]

Here, check this out. It's pretty informational.

http://get-rowdy.omgforum.net/t170-tire-shiz