With Gastric Bypass and the Sleeve you can actually re-stretch your stomach and gain back weight if you're not careful. I have two friends that got each procedure, lost all kinds of weight in the first year and gained back at least half if not all of it by the 3 yr mark. I would say though that the sleeve seems like the way to go if your gonna revise because at least they aren't playing with your intestines, although cutting off a chunk of my stomach doesn't sound like much fun either. I would say that as far as less invasive surgery and recovery time you would be better off having them fix the band, but in the end it is a very personal choice and I wish you luck!