[II kings 9:20]

I agree, drilled rotors develop stress cracks that spider out and won't last long, useless for street. I would add that SS lines will improve feel. Even with new calipers, slotted rotors yada yada, stopping distanced may not improve much, of course fade resistance and feel will greatly improve. If a system could show me an improvement in distance from 126 to say 105 on the same day, pavement, and tires then I would be interested. This could translate into real world benefits, I can't remember the last time I had to do 10 full on panic stops in a row.