My doctor used the small band (4cc). At first I was afraid it was going to work because after the 2nd week I was extremely hungry and even felt hungry after my first fill. But my doctor assured me that it was normal, that not everyone was the same. After the second fill, again 1 cc, I noticed more restriction than before, but yet I was still hungry. I have had my 3rd fill of .5 cc and this one really did it. I did the recommended liquids for 24 to 36 hours and just today (Friday) am able to eat a little around lunch time. I continue to drink the liquid protein drinks (that's usually my breakfast). But in the evenings I guess my band finally opens up and I'm able to get a little more down. I know when I first had the surgery I was stuck at having lost only 13 lbs. and I stayed at that number for what seemed like forever. But now I've lost a little more. I've even been able to go down 2 sizes, which I had never done before with any diet I had ever been on. Good luck to you.