im running them on my sol right now (205/50/15)
over all i like them
pros:
they are very good in dry conditions
they are great in the rain
they hold hard cornering well on the street
they have a VERY early warning before breaking traction while cornering
they seem to be wearing well (way better than the re010's that i had before them)
cons:
they take a while to warm up to a good opperating temp
i havent taken them on a road course yet so i cant tell you how they do under those conditions
they did well on RT 17 in VT
they dont do too well for autocross (they really dont get time to warm up)
i would get them again for street tires, but i would get a dedicated set of race tires for any serious track use