RNY to Band over Bypass need to hear from those patients: your experiences.

I had RNY in 2005.  Was successful to a point.  My stoma is enlarged.   I saw my surgeon today and he's presented two choices.   Either one is mine. So my question is:
If you had Band over Bypass, how successful have you been?  How much additional weight did you lose?   Anything you wish to tell me/advise. Thanks. 
I didn't think I'd be walking this path, but here I am.  
There will be another post concerning my other surgical choice.   So if you see two posts from me, please make sure you address the one you really have experience with. 

never on here - just logged on for 1st time in week - Im a BOB, 3 yrs out - read profile, hit me up with questions.  Personally though, I don't believe BOBs work for enlarged stomas only enlarged pouches.