I get the same handling and mileage, 35k, from Michelin, BFG, and Coopers on these curvy mountain roads. However the Coopers are the only 10 ply tires that are warrenteed so I get a new set for 30% off. I go through nearly two sets (65k) per year so they are clearly the "best" (ie most economical). I run them with 70# front and rear and they wear perfectly. Jeff