I don't see that I am a speed merchant on my bike, but since barely breathing on the throttle sends the Rocket away swiftly, maybe every launch no matter how gentle, is actually peeling tread off the rear?!?
That's about all I ever got on the Excedra Max . Try a Michelin Commander II and you will double that. Michelins are all that the guys I ride with run because we were tired of changing tires 2or3 times a year. I had around 19000 miles on my last one. Most of those were on 2 lane winding roads. I run the 180/65/16.