The good; drove an exceedingly fun road with lots of twists and elevation changes. The bad; the road had several miles worth of 'fresh oil loose gravel' which resulted in a cracked windshield. it's being replaced tomorrow, i hope they don't screw up the light/rain sensor in the process. I also determined that I do not like my new Hankook Ventus V12 evo K110s -- they ride very nice, but the sidewalls are very soft and there's no cornering feel, turn-in is less crisp and they generally feel sloppy; they cost 1/2 as much as the stock potenzas but are only 1/2 as good.