Congrats on your amazing success Sher!
I was told if you have two "medically necessary" letters from doctors other than the plastic surgeon this strengthens your case tremendously. As the plastic surgeon submitting for approval alone can be seen as self serving by the insurance companies $$$.
If you get chance to go to a OH conference please do as the surgeons give free consults.
I highly recommend Dr Katzen as I've met the man twice (Vegas meet and greet and the Costa Mesa OH conference)http://www.bodybykatzen.com/
Gastric Bypass Barbie can tell you all about Dr Katzen!
Give them a call they'll be more than happy to answer any questions you may have.