I had a 2nd slip last year and the doc did a revision (first time it slipped I had a doc who didn't believe they worked even though I had lost 72 lbs in 7 months -I started at 237- so he simply emptied it without doing any imaging to see how bad it was. I agree that it isn't the same. Doesn't mean it won't work if I go back to basics. I too have gained half of it back. Saw these posts and decided it was time to start logging food and exercise. Keeps me honest because I weigh, measure and put it in writing. Good luck to you. You aren't doing this walk alone.