Yeah the P90X guy seems like he wouldn't get me through much of that. Shaun actually pulled me through some workouts and was just great. I used Jack3d as my pre-workout, then _____-super protein and Cell Tech. Thighs take a beating too. Even before this I had really strong legs for someone of my overall size, and my thighs would just be killed anyway. It's also weird that in month 1, Pure Cardio is the hardest workout, than in month 2 Max Cardio is the easiest (still brutal as hell though). Also if you ever feel like it after a session, do Cardio Abs just to do it. Throwing in an extra ab workout here and there is helpful, and it's short and doesn't tire you out or anything.
--
The King of GameFAQs Brawl posting from his phone.
http://images4.wikia.nocookie.net/board8/images/8/8b/ViviffChampS1.jpg