Specificty of movements! Sure he handles terrain well. As Mdwf just said what we are trying to do is MA and learn from what we see and what others see. As everyone knows I am trying to be very specific with my movements and with my fore aft balance when I ski and this is because I wantt to ski a certain way, one that I beleive will allow me to ski at my highest possible level.
In bumps I agree that this the one place that you can get aft as long as it is in the right part of the arc. If you are back and you hit a new bump it automatically slows you down and moves your balance back forward. The place in the bunps where I want to be forward is right at the transition point because I want to be able to tip at my highest possible level and I want to be able to pressure my tips into the next undulation and I cn do neither from a more aft position. My main point on the skiers bumps skiing was that it was pivot based rather than tipping based. Both are ways to get down a bump run and he uses the pivot approach well.
Where I do think his for aft balance is problematic for him is in his carving where he is not tightening the arc by bending the skis at the tips and this is because he is not far enough forward.