[Jack21]

For reasons stated above, I would buy rotors drilled or slotted, rather than try it myself.

I'm considering the drilled (and chamfered), or slotted approach, but for an entirely different reason. Driving in the rain. When stopping on a wet road, water on wet rotors and pads need to escape as a liquid or vapor before the pads can grip effectively. My thought would be that a slotted or drilled rotor would allow this transition from wet (no friction) to dry (friction) to occur more rapidly, allowing the car to stop more quickly. Any merit to this? Your thoughts.

Some motorcycles, BMW's, and Porsche's have drilled rotors so the idea has some merit for high performance street driving.