Ive had the band since March 2011. Lost about 60 pounds first six months. After that it was a constant up and down of 3-5 pounds, Kept going for fills and having to have them taken out after a week or two because of too much restriction / chking feeling. Had endoscopy two weeks ago and found out my band slipped upward. Had it repaired and stitched on Monday, in an emergency surgery. Home recovering this week and hoping that this never happens again. After reading up lots about what makes ppl's bands slip, like eating too much, drinking carbonated beverages and not chewing I dont think I did any of those things. Good luck everyone! Always chew beyond what you think is enough!