I love my 164 CS. I agree with the previous poster, even in deep pow, you just ride. You don't even think about keeping your weight back, the set back, taper, and that big upkicked nose do the work for you.
For a dedicated pow stick, I just don't see dishing out $500+. It's a special occasion board. That's why I went with the CS, great pow stick and the price is right. Another board to look at that fits those criteria is the Salomon Powder Snake. *Oops, saw the poster above me had already mentioned it.