slotted and or drilled rotors

There is really no benefit to drilled, slotted or dimpled rotors except for looks. The days of out gassing pad compounds are over.

Are you looking for better braking performance?

I think what you are talking about happens with organic pads. Since organic pads are still available, it's still a possibility. I could be mistaken, but I think that's right. I sell organic pads almost everyday.