This is revolutionary??? Anyone remember the Perfecta RS2 blades from the late 70's and early 80's? They had a channel cut right down the center of the steel. When sharpened like a regualar skate, it gave almost this identicle result. However, I did see them sharpened by hand with a flat stone like you would a long blade. The problem was that ice would pack up and freeze in the channel, ultimatly resulting in more drag. I wonder if they have compensated for this. I still have a set actually. Interesting to see it reborn...but not revolutionary. My two cents is the FBV is great technology.