rockered skis will feel a little shorter, easier to press and butter, less chance of hooking an edge on rail spins and flat land tricks, and a little more versatile in softer snow. keep in mind though that rocker on skis like the reno rocker is very minimal, so the effect will be slighter than a rocker powder ski. this is good though because you do not want to take away the pop and stability of a good park ski, too much rocker will do that...