Originally Posted by ChrisSlicks

XP8's should be fine. The XP10 is a slightly more aggressive compound that will have more initial bite which might take a little getting used to, but lots of professional drivers like that feeling.

Most people are simply swapping these pads back and forth and then rebedding the stock pad on the street after driving 50 miles or so to wear off any pad film. The compounds seem to be reasonably compatible, shouldn't need sanding or separate rotors. Some people drive them on the street but they can be dusty and a little noisy.