any of you that have done the muscle/tendon change classic for a while--how much has your power and health improved. also, after you started reaping the benefits from the yi jin jing, was the power subconscious (when sparring or doing two-person drills, did you consciously have to call upon this new strength). i was guessing not, but i'm not for sure. i was thinking since the new and improved qi flow in your muscles was already there, it would be an effortless expenditure. thanks in advance for any and all advice.