Getting in pretty desperate need of some need tires for the horse. Right now i have roller's f&r 2.6(that is bigger than a 3) and a 2.4 in the rear. The trails around here are mild, some rocks, roots, and mostly jsut hard packed dirt. last couple dh races were HUGE rock gardens, and i also ride around town doing the urban ****. So what tire would you recomend for these conditions?