I've been there more than a few times. As for the little cruise I did this evening, it went really well. The amount of grip these tires have is phenomenal. Even though the wheels weigh about 2 bls less per corner, I couldn't really tell the difference. I know that these Kumho's weigh a bit more than the stock tires, so I'd say I broke even on the rotational mass. My drive consisted of a road with a lot of various turns and elevation changes, the Mazda and I had a great time. As much as I hate to do it though, this is my dedicated set of wheels and tires for auto x. So the stocks will be going back on until mid August.