[OldCreek]

My thoughts...

I thought the drilled and slotted rotors were to help cooling and prevent fade, especially in towing and race applications. Maybe they help clear debris. I think true stopping power is a matter of surface area, diameter of the rotors, piston number/pressure applied, amount of vacuum assist/hydro assist, quality/age of brake fluid, and even brake pad type.

In other words, I doubt switching to slotted/drilled rotors would do much. Pads...maybe so.

I've changed the vacuum hose alone and it made a dramatic difference in brake pressure needed. i.e. make sure all your stuff is in working order.

The larger the tire the more work needed to stop, also!