Here is what my surgeon told me:
Chew your food to the consistency of applesauce.
If you cant chew it to that, like with a tough piece of steak, do not swallow it.
You don't have to eat dry meats, you can eat the dark meat of chicken, just take the skin off.
If food does get stuck mix a little bit of meat tenderizer with some Water and that should loosen it up.
As for raw veggies, if they're stringy or fibrous like celery or something, you wont be able to eat it.
Your sweet spot should keep you full for quite some time with no throwing up and you should drink 30 minutes before and/or after youve finished eating to help keep the fullness going.
They gave us a whole class on this with an entire binder that has everything in it. You should see a dietician who has experience in lap band patients to get some expert advice though.