Several of you guys have the physics all wrong. Whether the mass is on the front or rear, the brakes overall are still slowing down the same amount of mass. The difference between the front and rear brakes is the available traction to the tires, which does increase to the front as the load shifts. That's why the brakes are set with a front bias.
I was hesitant to add to the OT topic, but too much bad information. Back to the topic.