I have run two trail casing mid rears and one gravity casing soft rear. This latest trail casing mid rear is definitely wearing the fastest. The gravity casing showed some feathering of the side knobs at around 25 miles but no tears like the latest one. The first trail mid casing showed feathering around 50 miles and started tearing knobs around 80 miles and was done just past 100. These were ordered in May, July, and now August. If I was able to get acceptable (not asking for Conti level wear, just like 400-500 miles) wear rates out of them...