Thank you for your input vilas.
hans bringer: Interesting article. Thanks for sharing. It seems like it is a matter of both, actually. Both low temperatures and brake applications seems to be the two factors with more importance regarding brake wear.
It also seems I was screwing it up with these brake temp thing; I HATE the sound of brake fans left running thru the turnaround, and I always found that if I turned it on at the start of the pushback I’d be with cool enough (100-ish) brakes when taking off. This, of course, means that I’ve been taxiing out with the brakes at its highest wear rate zone (ours are MB if I recall). Food for thought...
As a side question: Is the brake manufacturer the one on the wheel rim? Or can the rims and the brakes be from different manufacturers?