Just to add to the thread.
The brake wear indicators show the minimum amount of material required for the application of the brakes at 3000 psi on a high energy Rejected Take-off.
Carbon brakes don't expand that much unlike the steel ones of old, even this expansion co-eff would not be the serviceable/unservicable margin. So no point rushing to do your check when the a/c comes on stand to avoid the job! Haha
Bend the brackets like everyone else, NOT! (I have seen it done!!). Usually the limit on ours is 0.060" about 1/16, with park brake set.