You guys have noticed how pumped up everyone looks on the hardcore series, Cathes legs even look stronger along with everyone else. Here's my question I heard that Gym Style Legs was more of an endurance based workout, with muscles like that it seems to me that Cathe had to be lifting pretty strong at some point. So has anyone experienced getting muscle tone like that by doing endurance workouts for the legs only or did you have to do some lower rep, heavy lifting?