I had the 05/06 Mojo 80's and now have the 06-07 Mojo 80's. While they are a little heavy overall, their swingweight is amazing. Also, their flex is a little stiffer, but it is just right because you can get more pop off of the tails because of their stiffness. I've never had a speed chatter with them either. And they rip the rest of the mountain. Not only that, but they are pretty much bomb proof. It takes alot to mess these skis up. Thats why they are a little heavier, beacause Head wanted a ski that would stand up to the park. Theyre the best twins that i have ever skied, period.