andtckrtoo
Cathlete
I'm really weird - but P90X Legs and Back kicks my butt, when I do it with focus. My butt is sore for days. I think it's just my body type because Legs & Glutes kicks me more than GS Legs, too. So I'm weird, as stated above. That being said, I did the first three weeks with P90X Legs and Back and added Legs and Glutes on a pure cardio day. (I work legs 2x a week). The 2nd three weeks, I did GS Legs instead and added Leaner Legs on another day. I just don't think 90 days of the exact workout makes sense.