I'm not familiar with the Canadian A B & C schedules.
However, if your brakes are working OK, I'd be tempted to leave them alone for the time being.
I'll ring up @
Tcoat for a reading on this ...... since his car is Canadian and he has 100,000 plus miles on it. Although, he may not service his car's brakes till 3 out of 4 start throwing off sparks ......
humfrz