What I am saying is in heavy canyon driving or high speed stops the factory rotor causes the brakes to fade very quickly. When driving in the same conditions the small rotor kit was able to respond without fading and similar braking results with only more pedal effort to due so. (This is not testing the total stopping distance, But compairing the abilty to stop the car enough in a hard driving canyon situation). Even with Brake man pads and factory or brembo rotors and even the MWS kit and brake man pads, the rotors overheated easily and warped and faded quickly. This is not the end all kit and of course it is not going to stop in the same distance as a well made large brake kit. It does offer superior stopping to stock and resists fading and is guaranteed not to warp. This is a lot to offer for the cost and the ability to use it under the stock wheels. You are discounting the ability of a better rotor composition too much. Consider the difference a softer compound tire makes of the same size
