After reading about the 2009 ARRC results I became aware that folks are using the Hoosier R6 as a medium-hard compound DOT race tire and the Hoosier A6 as a medium-soft DOT race tire. Are a lot of folks are doing this? Anyone willing to share the ballpark figure for the ambient temperature crossover point between the two?

As for the Hoosier DOT rain tires do most folks use a narrower rain tire?

I need to purchase tires for the spring and for my initial suspension setup and Hoosier appears to have the best DOT tire line.