In reply to chris bedford:
I have no experience of the Crusairs but I do ski Missions (with Fritschi freeride bindings) for pretty much all my skiing (multiday tours, lift accessed off piste and piste). Prior to that I skied Dynastar 8000s and before that Rossi B2s
I have been really impressed with the Missions especially in variable conditions (crud, windpack etc), they cut through most stuff quite easily without having to be aggressive. They also seem to turn more easily compared to my old ski which were the same length.
The only negatives is they seem to be a little heavier for long skinning days (or is it I am more unfit!) and dont feel quite as stable on narrower skinning tracks ( I dont know if this is due only to width underfoot or they are a little softer).
Most of my ski mates also ski Missions now and we are all happy with the performance - although non use dynafits so cant comment on that combination.
As and add on you might also consider Movement Logics which look a similar kind of ski.