the 1st 6 weeks after banding is the hardest before the 1st fill, 1 because the swelling makes us retain fluid, and 2 because when the swelling goes the normal desire to eat returns, so the 1st fill is a milestone to start working with the restriction. the initial restriction felt after the op is usually only down to op swelling which goes usually after the 2nd week. (some surgeons do put a small fill in during surgery to kick start the weight loss)