Hey Debbie!!!!!
You sound like me

Especially on the Heisman question (and does it totally bug you that Shaun T forgets part of the stretch in Plyo?????).
1)The ab workout is only 15 minutes long. It's not that bad, but you will be tired after you do both of the workouts. It comes out to an hour total for the workouts. You only do this 5 times during the first month and I actually really like the ab DVD. If you want/need to, split up the workouts and do one in the morning, and one in the evening.
2)Yes, your body makes a LOT of adjustments because of the deep impact Insanity makes. You may retain water and acids (you may have noticed your weight goes up a bit). Make sure you are eating lots of high fiber foods and proteins, and drinking lots of water. If you need help setting up a tracking account or diet plan, let me know. Green tea will help with body function and you can add an Activia type yogurt. Shakeology really does the trick if that's a supplement you are using or want to use.
3) I always wonder how the heck they picked out that group of people!! A few of them do the exercises all wrong! I wonder if it's a way to make us feel better about ourselves? I can see that some of the people make obvious mistakes in their footing and stretches. Listen to Shaun T's cues and watch Ariel or Tania as they have the best form. They get tired, but they attempt to finish everything and always have excellent form.
4) it's called 1-2-3, but really, it's step, step knee. When it's really fast, it's more like a shuffle, almost. That's one move I really like.
I love your questions!!!! Write me any time or add more here!!!!
Beth
Elite Home Fitness Group