I have read in different sources that a muscle should be "hit" every 5 days to see any kind of difference? I've noticed Cathe, with the PS series, and the Slow and Heavy, you hit the muscle once a week of course not again for longer than the 5. My question is, are your workouts based on intensity?, therefore gaining results on a once a week routine? I have one other question if I may, I finished up the BFL program and found the fat loss to be limited but the muscularity to be more than desired, bulky, I'd like to now tone and define and lengthen what I have, would I do your routine for muscular endurance or your strength routine? I would so much appreciate yours or anyone elses' input. Thanks in advance Sandy in Maine