I know your post is a few months old, but I just found this board. (I have been lurking on the Dis for over a year.) I have had my band for nearly a year and I'm 20 lbs away from a normal BMI for the first time in my adult life.
Even though your said your band is maxed for fills, I would go back to your surgeon have him check things out under a fluroscope. It's possible that you have lost fluid in your band due to evaporation or a leak. If you regularly eat over one half cup of food at a sitting, you may have strechted your pouch. It's also possible that your band is too full and you are choosing less dense proteins and sliders because they easier to eat.
I had a friend that had some fluid removed from her band before a cruise. After the cruise, her surgeon planned to refill her band in three stages. After the first stage, she was in the green zone: rarely hungry, satisfied after a meal for four to five hours, able to eat most dense proteins. She hit her goal six months later and has been maintaining for six months.
Are you still following the band basics? 60 to 90 grams of protein per day, eat your protein first, veggies next, and then, only if you are still hungry, starches, don't drink your calories, avoid slider foods and snacking.
WW is a great program, but unless the meeting leader is familiar with the band, a lot of their advice isn't applicable to bandsters. Filling up with veggies is great advice for most folks, but if you fill up with veggies, you may not be able to eat the protein that your body needs.
Good luck on your journey from Pooh sized to Rabbit sized.