Fishin Guide,
You are thinking exactly what we do here concerning rotors the gas slotted ones are generally better materials and last longer without any warpage. We ONLY promote the Powerslot rotors and Hawk pads, best value and warpage is not a problem at all. They usually cost an average of 90-100. 00 per rotor and a set of the pads are around 60-70. 00 per axle. I have them on my truck and that's why we stock them, the difference in braking performance was night and day as compared to stock, much less the life span difference of the rotor. They even have cyro frozen rotors if you are extremely hard on brakes!!!
Mark @ DPPI