When I hit about 20 something thousand miles I noticed it getting a little unnerving with my SRT8 having a mind of its own, wanting to go where it wanted, not where I wanted. Last month I put on Toyo Proxes ST's the older style. Not ST2. I have had years of experience with them.
I love the way they ride. More comfortable ride all way around and 1/2 the price of OEM Pirelli run flats too.