This version of the Wujigong form, is demonstrating optional variations, as of 05/04/13. These variations are meant to give you the opportunity to "Customize" the form, to complement your personality, personal health condition and life circumstance, of the present moment. Unless you have an affinity for any of these variations, you should continue practicing in a way that serves you best! Peace & Good Health... Namaste! ~ Sifu Larry Wong