Kandi,
I have a 4cc and just got my 3rd fill. I was banded in Sep of 2007...
1st Fill- 2.4cc (good restriction for a week, then gone)
2nd Fill- 3.4cc (great restriction for 4 months, then tapered off to some restriction)
3rd fill- 3.8cc (SUPER TIGHT)
My doc says he has filled over 4cc many times. He feels like up to 5cc is ok because of the tubing. I would ask your fill doc to fill you up to 4cc- then drink some Water and see what happens.... If it won't go down, you need to back it off...
Just my 2 cents....