Ok, Cathe-ites, I've got a question for you regarding her workouts. I've been doing Firm since BSS1, and up until recently all of their strength and C+S videos have been fairly heavy on lower body work using heavy weights. Now that I've switched over to primarily Cathe's videos, I've noticed that with many of them (primarily any of the circuit-style ones) there seems to be minimal lower body work with a focus on cardio and upper body primarily. I'm always hesitant to use, for example, Low Impact Circuit, on a strength training day because I'm not sure whether my lower body is getting worked as hard as it should. Does cardio w/ blasts = a good lower body workout? I'm wondering if maybe lots of sets of squats, lunges, and leg press with heavy dumbbells isn't as important as I used to think it was now that I'm doing a whole lot more cardio, particularly step cardio.