Where should I start?
I would start by doing the research on what different weight loss revisions you could get. For myself, I chose the revision to the DS, rather than having my RNY repaired because I just didn't want another surgery that could mechanically fail me. I had an endoscopy and an upper GI and it was determined I had staple line disruption, a large gastric fistula and stoma enlargment. I only wanted to go through this one last time.
Being in CA you have an advantage in that CA has a better review board if you get denied but if you have medical necessity and documentation and your insurance covers WLS, getting approved shouldn't be a problem.
Check out my profile for more details. My surgeons were in San Fran and I've done great with zero complications.