thats why I think there is the possibility of two issues going on at the same time. Worth looking into. At the wost case, might be time for a rear shock adjustment and maybe some fresh fluid if the problem persists.

Ken

i think you need more rebound based on the wavy pattern. But the feathering is normal I think since it was new pavement. I had the same feathering but it was a smooth band not wavy like yours.

That happened to me at summit, I first noticed when I was at main in end of march, it it was kinda cold that day which didn't help much. Tires got ripped up pretty good. Then I was at the WERA races back in april, it was 80 outside and sunny, during practice the tire got ripped apart even more in kinda a saw blade pattern similar to your picture. While riding coming out the higher speed turns I was feeling the rear shock compress, then rebound a little too quick which made the bike a little squirrly but also had to put a lot of stress on the tire. I added 3 clicks of high speed compression and took out a click of rebound and threw on a new rear tire for the hell of it. Bike felt tremendously better when I did the HW solo race, and the new tire showed no signs of abnormal wear whatsoever.

+1 Your wait for the bike to more upright and are grabbing a hand full of throttle. As Ralph said get in the gas smoother and sooner. The tire will show more even ware. Ralph wore a tire out at Pocono East last time we were there and the tire has no tread at all from the edge to the middle. It was a beautiful sight.

With the blistering heat I opt to run green/green set up, was able to snag a green front from the Pirelli guy before he left the wera event. For shits n giggles I went back to 30/30 cold pressures. Tires felt the same as the 30/30 hot but seem to wear much better...and this is Summit we're talkin about...last time I was there my SC Pros were torn up running 30/30 hot(which is probably around 25 cold.)

Joe
FWIW, I think those tire pressures are a tad low. I ran the Metzler Racetecs at 32/32 cold for two seasons with all of the grip I expected and very predictable and even wear.
30/30 cold is probably going to be a much better pressure for you to run with than the 25/25 you might have been runing.

wow, that is some crazy ass wear!!