Since in the bay area, we rarely see snow (just some more rains in the winter), what tires will perform well and last a long(er) time assuming mostly street driving and occasional track use? I'm looking for a good compromise among longevity, performance, and convenience (related to longevity as I don't like to replace tires all the time). Do people here use summer performance only or is something like Michelin A/S good? Looking for something that makes sense here in the SF Bay Area (Some cold days--a few 30-40F days, more rains in the winter, mostly sunny or overcast other times). Right now I'm deciding between Michelin Pilot PS/2, PS/3, and A/S. Thank you.