I find all this discussion of brake rotors interesting. Drilled or slotted, drilled and slotted, stock, aftermarket, etc, etc, etc. What I don't see or hear on this form is any discussion on the part that the brake pads play in the the stopping effectiveness of any 300 braking system. The whole braking system must work as a unit or the results will be unpredictable. I don't care what rotors are used, with out the proper pads for the intended use the whole issue is mute.