After only 250 miles I don't think you'll see much wear if any. remember most of your braking action is done at the front wheels. Thats why you replace the fronts more often than the rears.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.