Splenda?
Perhaps you are thinking that because Splenda is "made from sugar", as they say in the commercial, it will make you have dumping syndrome. Please pay very close attention to this-
DSers do *not* get dumping syndrome!
Dumping syndrome is caused when sugar (sucrose - also known as simple sugar, cane sugar, table sugar, high fructose corn syrup, simple syrup, etc.) gets into the bloodstream too fast, as it does with a created pouch, as those with the RNY gastric bypass have. They have lost the use of the pyloric valve, which controls release of sugars into the small intestine where they are absorbed into the bloodstream. With a created pouch, the pyloric valve is lost, and the sugars just drip through from one side to the other into the intestines with no breakdown. Body can't handle it, clammy, sweaty, nausea = dumping syndrome. Of course I'm sure I've over-simplified it, but that's basically what happens, sugar gets into the bloodstream too fast.
Are you looking for a stomach reconstruct to a VSG, or are you keeping the RNY pouch and only revising the small intestine configuration? If so, then what you will end up with is a distal RNY, also known as extended RNY (ERNY).
I read in another post just last week, I think, that there are only two DS surgeons experienced and skilled enough to be able to do a total reconstruct, one I believe is in the Los Angeles/Beverly Hills area, and another I believe is in Mexico. I will have to find that thread and get back to you, or you can do a search for it. I would think a DS Reconstruct search would be enough to get you started, but I will look, as well. I'm thinking Dr. Keshishian might be one of them.
Perhaps some other DSers could chime in on this, too????