With rocker, since the tip and tail both aren't touching the ground, it gives you less effective edge when carving, making it easier to start a tighter turn. On ice, this is not always ideal, although it does allow you to ride a long ski since it skis like a shorter ski. Camber ensures that when you step into your bindings and put pressure on the middle of your ski the entire length of your ski is contacting the surface. Thus, harder to initiate turns but more stability at speed. Hope this helps.