Originally Posted by brianappleby
i disagree..... if it's possible, it will teach you the limits of your bike's braking capabilities, which means you can brake harder and later than someone who needs a safety zone. Braking harder and later is how you go fast.
Actually simply using your brakes as little as possible is how you go fast. Brakes are devices that turn motion into heat. I would argue that learning the limits of your tire friction and lean angle versus lateral G's while cornering would help your times more than knowing the limits of your brakes.
But, it's always good to be totally in tune with all of your bike's physics.