I got my Aetna approval on Friday and it was pretty easy. 4 months of supervised nutrition visits, meet their minimum BMI (or BMI and comorbidity) requirement, and don't gain any weight from your first visit to your last. Easy peasy!!
I asked Aetna why on the no weight gain rule and apparently there are studies showing a much lower success rate for people who gain pre-op weight. It can cause more surgical complications and shows a lack of dedication and knowledge about what is required for a banded lifestyle. Makes sense to me, it just sucks people weren't grandfathered in if they started the 4 months prior to the rule change.