I'd like to join in even 2 months after your post. I am doing L2 of the shred and just got 6week 6pack and was thinking of either combining it with the shred or doing it after.

Does 6 wk 6 pk only focus on the stomach region or is it an all over body workout? I haven't bought that dvd yet so I was curious. I'm on day 18 of shred right now.

Amazon's description.
Having ripped abdominals may not make you a celebrity--well, unless you're that guy on Jersey Shore--but if you're looking to "lose weight, get healthy, and change your life," as trainer Jillian Michaels puts it, then 6 Week Six-Pack should find a spot on your menu. It won't be easy; there are two very challenging routines featured here, each of which should be practiced five days a week for three weeks. Nor will it be simply a matter of lying on the floor and doing a few sit-ups. Michaels's mantra is "shed fat while toning your core," and in the course of these two approximately 30-minute routines (Level 1 is hard; Level 2 is harder), you'll spend a good amount of time on your feet doing vigorous aerobic work (marching in place, squats, lunges, leg lifts, and such, all designed to keep the heart rate up), as well as the demanding mat exercises, some of which derive from the plank (or upward pushup) position and thus build arm as well as core strength. The pace is quick, rests are few, and Michaels is a demanding instructor; there's no coddling here, and the workouts are definitely not for the slothful or faint of heart. But she knows what she's doing--her emphasis on the breath will be familiar to anyone who practices yoga, as will some of the poses she uses, and her attention to "control, focus, and form" is helpful. "Bring intention to your action," Michaels says, and judging by the hundreds of positive user responses, it works. --Sam Graham

Amazon.com

I did level 1 on 6w6p last night and it was hard. There are a lot of planks, more than in the shred. I am not on level 3 of the shred yet so I hadn't done the side plank and it is hard, hard, hard. There are many variations of the planks in this that are not in the shred. I think I may finish the shred before I do 6w6p to get the hang of those planks. I did get a great workout last night with 6w6p when I wasn't collapsing during the planks. It works your abs, but I felt my upper body got a good workout, too.