I recently read in a fitness magazine that weights are the only thing that can change the shape of your body, you can do cardio until your blue in the face but weights is the only thing that can your shape? Do you feel this is true, and if so, maybe in the near future you can do a advanced series with a tape for each body part, maybe 30 minutes long for each body part, except for the legs which would be longer. - Pam:7