Lightweight DS
Dear Lazy Poker 5'1 Meatball, I feel your pain. The odds are stacked against all of us by the food companies so a tool like the DS is a great way to balance the scales :).
I was a 39 BMI but still needed to lose a lot more than I could on my own. I choose a variation of the DS call a Sadi or single loop. It worked for me and I dropped 150lbs. Vitamins are pretty simple and 1 major bowel movement in the am jettisons all toxins which feels great. Everyone's different but I can eat any amount and not gain weight 6 years out.
The most important thing is to find a highly skilled surgeon who's a DS expert.
Good luck!