I've had my band for 7 months - lost 50 pounds. 4 cc band - 2 fills so far (2 cc's and 1/4 cc).. my doctor (Aaron Roth - White Plains, NY) has a chart showing red, green and yellow zones... the red zone includes often hungry, gaining weight, eating more that usual. The Yellow zone is too tight, acid reflux etc. and the green zone is losing steady weight (1-2 lb's per week), feeling full and not hungrey... we use the 'zones' to decide whether it's time to fill or not...
Good luck!