I just want to say that I have enjoyed very much the discussion between Bob Church and Mary Conley. Quite frankly, I am interested in this topic, but do not even know enough to know WHAT questions to ask. You have enlightened me and I wish that more of these types of educational moments could occur. Thanks, Bob and Mary (and Big, who allowed the long posts to pass through!). renee :) [Posted in FML issue 3936]