Even though the DS has been around since 1988, it's sort of the "best-kept secret" of WLS. Not a lot of surgeons do the DS (although the number is growing), and unfortunately many medical professionals simply don't have complete, accurate info about it.
Do you have any co-morbidities, like diabetes or high cholesterol? PCOS? GERD? Arthritis? What about a family history of them? These are things you need to figure into your choice of WLS procedure, as well as the post-op demands each procedure makes. The DS not only has the very best long-term, maintained weight loss, it also has the best stats for resolving or preventing co-morbs like diabetes and high cholesterol, and it allows you to take NSAIDs for things like arthritis, headache, menstrual cramps, sprains, fevers, etc.