The PRW rockers are more or less a complete roller rocker kit. Mike doesn't do anything to them, he just adds a small correction kit for the geometry on the trick flow heads. So the kit is rockers, spacers and shims to center the rockers and non banana groove shafts.
I did not groove my shafts. It's been 3 or 4 years, not saying not to have that done, or get them.