I added a comment to slide 56
. Should have remembered to put this in.
With annual flushes, I have yet to lose a master cylinder. You can get away with doing this without removing the wheels, but I find it easier to take them off and check the pads and rotors while I'm at it, especially as the dust shields on the front axle render the rotor invisible through the wheels.
Bertie was too preoccupied trying to pick up our one year old son's lunch droppings to help.