I had a gastric band fitted 3years ago, I had excellent restriction with 6.5mls in my band. I want to try for a baby next year and on the advice of my gp had 2.5ml removed, but having done some more research (and struggled with the return to no restriction) I want to get 2ml added back. Can I have this done in a single fill, or will I have to have multiple smaller fills? Thanks for any advice!