I don't know much about the formal program. For quite some time I conciously zig zagged calories. One day I would be at 1100 and the next day 1500 for example. Now, I really find that if I have a high day, I naturally want less the next day if I listen to my body carefully.
I would go about it carefully for certain. I think my fear would be that I would discredit my "diet" days by what I was eating "off" days. Would you track calories to be certain you were doing okay?
"Be who you are, say what you feel. Those who matter, don't mind. Those who mind, don't matter." --Dr. Seuss