I am looking into getting a sleeve revised to a duodenal switch with Dr Ponce De Leon in Tijuana MX. I can only find 2 people that have used him for DS in the past and none are responding to me for updated opinions. Anyone here use him for a DS can you tell me if your experience was good? Any complications? How long before you went back to work? What kind of vitamins do you take? Thanks in advance for any feedback!