Here's an article I ran across this morning dispelling a few popular brake myths and common beliefs. The author does a pretty good job explaining how things work in the real world. Link
Ben, not sure why you think the Praise Dyno rotors are "all that" if they check like that....maybe it's the change in the NBS platform, but I have not found anything that will beat the OEM pads and rotors. I don't take my 2500 burb to the track and don't see ant benefit to slotted or drilled rotors. I used slotted rotors on my 94 SHO because Ford OEM brakes were crap.
I have to say its true, if you buy GM you get two legendary design capabilities, brakes and heat LOL/.