a switch cork 9 is like a switch 180 to a cork 7, it wraps up and spins fast. A switch rodeo 5 and 7 is essentially the same as a switch cork 5 or 7, except they are flippier. The real difference between the two is once you get to 9 the switch rodeo spins out at the end, like a 540 to a 360, whereas the switch cork 9 is a 180 to 720.
Clayton does a sick switch cork 9 for the last trick in this