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Jon,

I was just wondering if you checked-out the DVD, or performed any other background checks before responding. There is significant science behind this and I researched it before, and found it to be very nice.

Will a 4 minute workout equate to an hour of Kung-Fu? Probably not... Are you also aware that the majority of people abandon their workout regimine due to time constraints?

If you looked at the machine you WOULD find that it does work all your muscle groups -- not all at once (more upper body at one way, and more lower body the second way).

Since life seems to be about learning and growing -- I would suggest being open, and perhaps you will learn something. Life is best for me when I keep learning, expanding my horizons and improving myselves.

Well...best of luck with your workouts -- an hour and a half at a time is a lot. Perhaps if you found some way to decrease the time you needed for workouts, you would have more quality time with the family...who knows, just a thought.

Tim