Nope, its all the same if you ask me unless you are doing track days.

Even in an autocross, I dont see your brakes getting that hot in such a short period of time that you will experience extreme brake fade, nevermind warping them.

And if they do, they have a 90 day warranty, go return them and get new ones! If you warp the blanks, you probably would have warped the slotted rotors too.