I talked to Hoosier today and they have not made any changes to the 255/35-18s since introduced and are not planning on making any changes in the near future. I believe the A6s have much softer rubber than the Kumho 710s and if you run the A6s on an abrasive surface it will cord the edge. Negative camber can help the situation.

 

yes, no changes, but IMO your front tire pic is showing the wear issue some

 

I dont know how the tires will be after 50 runs the tires in the photos only have 17 runs on them