Hi Joey......I have been doing the 6 day and really not seeing any difference.  Been doing a few months now.  With the legs I am doing the 3 x week and almost daily cardio.  I am eating great and weight I would say is pretty normal.  Not sure what to do.  My second question....I was just watching this video and the person was saying if you can't actually feel the muscle when you are doing a workout that the actual muscle might not be firing up.  So I tried it and noticed that I am not always feeling the muscle underneath the fat.  So should I be adjusting my leg/arm so that when I do the movement I feel the muscle so I know it is firing up.  Lastly.....I know you mention isometrics a few times......so are your movements more isometric type of movements.  Any guidance you can give me would be helpful.  Thanks Linda