Personally, I had a terrible experience with the lap band!!!! I was throwing up A LOT. Most of the time I would take one bite and it would get stuck. Sometimes I would take a sip of water in the morning and would end up throwing up for 30 minutes, and that's on an empty stomach. I didn't lose weight and eventually the band slipped and needed to be removed. I had such a terrible experience that when people tell me they are getting the band I always tell them my story. I even told my doctors office that they could give my number to patients considering the band and have questions. I'm so relieved to have it out. I'm not used to eating a meal and not having to stop because its stuck. I had the band for a long time, too long!!!!!
I'd advise you to start practice eating slower and chewing your food really really well. Even if you're not dieting eating slower and chewing more will help for after surgery. Also, I'd stop eating and drinking at the same time. After surgery you won't be able to eat and drink at the same time, the more practice you have the better. Some people really struggle with that as they are so used to taking sips while they eat.