Pros: Wicked fast, slice and dice on hard pack, quick in the bumps
Cons: Tossed around a bit by chopped up crud
I demo'd these at Vail for one day in perfect Spring conditions: Hard in the morning, slushy at noon, pre-cast concrete in the afternoon after the sun went out. I skied the '09-'10 Speeds with white topsheet, 116-68-100 with a radius of 15 m, I think. I am 6'2", 200 #, and had 178 cm skis. My first impression was 'Wo, these are stiff!" But they are a carver's dream, quick edge to edge, never skidded out on what passes for ice at Vail. Completely stable at any speed. Very quick in the bumps - in fact sort of felt like cheating somehow. Off piste was more of a struggle, but they were serviceable. They tended to get pushed around a bit by piles of heavy crud, but that may have been due to the length which is a bit shorter than I usually ski or maybe the stiffness.
All in all a great ski for break-neck speeds on hard pack and carving around and through bumps. Off-piste they require a little more attention to detail but can handle mashed potatoes. Seemed to be the choice for every day but a powder day.