Tread wear ratings are subjective. Each company makes their own ratings.
Grassroots Motorsports did a tire test in this month's issue. Pick it up (has blue WRX on the cover). They covered the Azenis, KDs, 712s, ES100, Hankook, Ventus, and several other tires.
__________________
Sponsored by: KAM Racing Sports, Falken Tires, Progress Technology, Brady's High Performance, Taggart Performance Engineering, Rotora Brakes
Autocross is: 90% driver, 5% car, & 5%
CRAZY MOJO!
Autocross Help Page