I understand, but for me its not how long they last. I had crotch rockets that smoked tires in as little as 1500 miles. I want a tire I can trust my life on at speed and in various weather conditions. I feel I cannot trust the Dunlops in rain, since I spun up the rear tire attempting to pass a car. I was probably in 3rd gear and held the throttle steady while the bike wanted to high side me. Eventually the tire regained traction and I was very cautious on my 400 mile ride home in the rain.
I'm not a tire snob so I don't really care about brand or mileage or any of that. Really, this is the only part portion of this whole post I can comment on. I put a cheap Shinko rear tire on my Valkyrie recently. Last weekend I got in it with a mustang on the interstate. Even at a sustained speed of slightly over 100mph the Shinko was fine. If you hate your factory tire buy buy a cheap Shinko. Maybe it's better. Mine seems to work fine.
I wasn't there and I cant say, but maybe any "performance" bike would have spun out "any tire" in that scenario. Just saying, it happens. If you think that's bad, you should have owned a Vmax........