« Reply #7 on: February 11, 2013, 02:18:23 pm »
If you want stopping power stick with semi-metallic pads. They wear the rotor more than organic pads, but provide better stopping power. Save your rotors or have better stopping? Which do you prefer? Sounds like stopping power.
For heavy braking performance a gas-slot rotor will provide you benefits. When you get on the brakes really hard there is an outgassing from the hot pads. This gas will actually interfer with the clamping force of the pads. Gas slots also help in wet weather braking by reducing the amount of water that gets between the pad and rotor.
Cross-drilling is for extreme performance brake cooling. You don't need it and generally your rotors will crack somewhere because of the cross-drilled holes. Even professional race teams have generally moved away from cross-drilled rotors.
The gas-slots don't have to be numerous and fancy shaped...you can simply have 2 straight slots across the surface of the rotor (tangent to the radial dimension) and it will suffice.

Logged
-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6