I realize this thread is old and therefore you may have found all of your questions answered by now. If you haven't, I'd be happy to help.

To JimR: I am sorry to hear you were not getting the desired results from the Zone. I am however, concerned you gave up prematurely without all of the facts. Your post indicates you were eating 11 blocks. That is the minimum amount for most women (unless very small frame and under 5'1"). Most men generally fall into a minimum of 14 blocks. A higher activity level would bump that number up. Chances are you were not eating enough. This would have put your body into a catabolic state and you would have held on to fat AND lost lbm.

I hope you reconsider coming back to the Zone.