October 14, 2017
no so far
Current setup is 180 front, 160 rear, M8000 XT calipers...
Not much change of down hill fading on North Texas, but plenty of short bump stops and dust. The only time I hear anything from these disks is when they get dusty. A momentary light touch on the trigger, they clean and get quiet again. Combined with M8000 calipers, there really to perform effortlessly. I only use one finger on the triggers (not really long enough to call "levers" :) ).
On a summer trip to Vail, I put these through some lice long down hill runs. No complaints. Stayed cool, lever faded, never squealed. These will be my go to disks from now on (unless Shimano makes a negative change to them).