I like the concept (though honestly I'd have Stances be the Move-Action equivalent maneuver), but all the maneuvers have been pretty much "Normal Movement, only better" which I find uninspired. Honestly only the highest level (and by that I mean 5th level and up) rushes should be outright better at movement than the move action. It wouldn't be to hard to throw in some decent scaling DR (Stone Dragon) or Temporary HP (Iron Heart) and something else (a small attack or something) in exchange from 10' less movement.