Just completed Shoulders & Arms plus Ab Ripper X. I've gotta say I felt it a lot more on Ab Ripper x today. I decided to actually pause, and slow down a little so that I could do the full 25 on each exercise. It sucked I could barely do some of them, but at least I finished all of them (except for one of the exercises...I don't remember which one now).
Some advice for anyone who wants to d P90X that I discovered today...
1. Don't skimp on the weights. Make sure you have a good range.
2. Read through the exercise guide book before hand, and try to lift a weight for each exercise first.
3. Don't be afraid to have a really small weight for some of the lifts...it will make a huge difference.
4. Seriously consider getting the BowFlex Selectec dumb bells.
Basically, the Shoulder and Arm workout should have taken about 50-60 minutes. It took us 90 or a litter more because I had to keep changing weights on my dumb bell bars. Yes...I decided to go with the bars and adjustable weights thinking I would save a little money. I probably saved some money, but I made it much more difficult on myself. Basically, if you don't count the small bar I have a range of 5 to 35 pounds in increments of 5. This actually turned out to be a pretty good range, the problem is trying to change the weights quickly between exercises...or having to wait while my wife uses some of them as well.
Overall....very pleased with myself and my wife. We are sore and feeling it every day when we wake up....but we have 3 days down and 87 to go. We are gonna make it...and maybe when I'm done I'l post the before pics along with the after pics.