Hey guys i found this video on youtube and i don't know if it is good for the wrist. Can you guys tell me the Pros and the Cons to this exercise? Thanks! http://www.youtube.com/watch?v=aH5FgR2SaiY&feature=related http://www.youtube.com/watch?v=dozBKwAw0Ng&feature=related http://www.youtube.com/watch?v=Ou8behRXkAE&feature=related