The fastest way to reach maximum braking capability with, or without, abs is:

The fastest way to reach maximum braking capability with, or without, abs is the threshold braking. This technique is most commonly used in driving motor. This can also be used in road vehicles, technically those with four wheels, to slow down the vehicle in the maximum rate possible. The optimal amount of braking force is achieved when the wheel just begins to slip.

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.