I have Bridgestone b381. I had 60k on the first set ,while they passed inspection their traction was deteriorting at that time. Ride comfort (bumpiness) at that mileage increased. throughout the life of these tires I was impressed with their snow ability, but recoznized that in deep snow, with the hybrid built so low, the car and tires are not a snow vehicle. I drive 5 miles over speedlimit and are pleased with the bridstontes especially up to the 70 percent of their life. When the tread wears, the tires performance degrades(duh) but their was legal tread into the 60k span. New tread nice. On second set