I also had my band removed, and had to wait 3 months. I was told is due to the scar tissue and it needed to heal before they do the sleeve, also insurance and you need to do some test over. I was sleeved on 8/10 and have lost 18 so far, I'm glad I did the revision, the band started giving me so much trouble and it begin to hurt. There is a 1500 calorie diet you can follow to help you maintain and not gain any weight, it was very hard for me and I found myself eating more, and more, I pray you can get it done soon, blessings to you all.