I did the LSD for four weeks - four WW soups, four Muller Light yogs and 500ml of semi-skimmed only every day. I lost two stone.
Yes, the LSD is just that - Liver shrinking. The Liver sits in front of the stomach and needs to be as small as possible for the surgeon to get in easily and not cause damage. Of course, it also gets you in the zone for what is to come after the op - ie being on very restricted rations for ever more. You will have a small incision in the middle just below your cleavage - this is for the Liver hook which will be attached to the side of the operating table.