@DaveW: Welcome to tire tech talk! Appreciate your input! I agree, driving style is very important. So many drivers seem to just drift around the track spinning the tires as much as possible, then they complain about how they go through tires to quickly. Generally when I see this the car is pushing badly and they are using the throttle to steer. A well setup car shouldn't be spinning the wheels much at all. This is just lost power and traction.