Filmdog,
I did the 40 day fast with no laxative teas whatsoever or SWF's and just did salt baths and walking. I eliminated a lot and no cramping or yucky side effects of trying to make the bowels push out something when there's not much there.
I myself wouldn't do the teas, p & b shakes, etc, but I know that the bowel cleansing people think that they're ok, smiles. Writing just to tell you that your body DOES eliminate on its own schedule on its own without those teas and things on the cleanse.
Good luck...
Barbara