I am using HPX's.
I get about 3500 miles out of the rear .
The front I have only had to change once.
I ran the stock front till like 8500 miles then changed to the HPX front.
I have one more set of HPX"s in the garage and then I will be changing to the " Pilot Power" which has replaced the Pilot Sport HPX's.
I love the HPX's though, in my opinion an excellant tire, but they should be for the price.