Hand Movement: Wasteful Motion or Deceptive?

[Iron_Eagle_76]

Recently I had a discussion with some friends/training partners about hand movement in Kung Fu. Many CMA's tend to use hand motion quite often, perhaps for deception. The point of this in my opinion is similiar to the bob and weave found in boxing, although I personally feel the bob and weave is much more effective. The more a person moves, the less stagnant they are and become more unpredicatable in the techniques they are trying to make work. We have all probably seen this video a hundred times, http://www.youtube.com/watch?v=a4JiNrU7jEk, whatever the Kung Fu guy was trying to pull off did not work (Drunken Style, ?) Anyway, how many on here use lots of hand motion or stick to a solid boxing/kickboxing guard. The pros and cons of each could make for an interesting discussion.

P.S. Just realized I put this in the mixed martial arts section, although relevant, my apologies.