I've got an SRT6 with the Pilot Sports 2 AS tires. I often read about how the Crossfire aggressively follows the road grooves. Never having experiencing this, I thought nothing about it. Figured it was just a mis-alignment issue.

I had the opportunity to rent a roadster recently and it had the Contis. The steering on that car was all over the road. I really think the Contis are the culprit with this. Are you just replacing the rears? If you can I would do the fronts as well. I am sure you will notice a big improvement in the general handling.