Simulated testing of both the SD and PD discs in the same conditions show a increase of brake performance by up to 20%. With a 20% increase in brake performance, the driver can drive with more comfort and safety. After careful consideration of various factors such as pad wear, noise level, and gas ventilation, 6 slots was adopted as a standard for SD brake discs. The best width, angle, and depth of the slots were chosen using the data from various races and road tests. For the 6 slot brake discs, reverse rotation (slots pointing forward) is recommended for a better brake performance. By offsetting the slots on the inner and outer side of the disc, an improvement in brake modulation was achieved.