Hi all, had a problem with my front calipers. They were the originals that the car was born with and on inspection the pistons and bores were scored so i replaced them as they were binding and getting rather warm. That was months ago and yesterday i have noticed hairline cracks on my discs from the centre out to the edges. Only one on each side and i will be replacing them but wanted to know if the binding brakes caused this? anyone have any ideas?