Hi Cathy, I am 5"1 weight is 106 lbs and don't want to loose weight. I ordered the STS program. My goal is to tone my upper body and gain muscle on my lower body because I want more volume. I also have the Butts and Guts DVD. I would like to know if you still recommend for me to do cardio workouts for the days I don't do the STS? What do you recommend for me? Can I add in one workout of the Butts and Guts in the STS instead of the cardio? Thanks