Furthermore, considering your 11 months PO your portion size of 1/2 cup - 3/4 cup seems to be the normal. I was just looking at a barbaric site and it said.
"Eat small amounts. Your meal portion size will range from ¼ cup to ½ cup of food 3 to 9 months after surgery. After 9 months you may be able to eat ¾ to 1 cup of food at a meal. To keep the weight off, you should eat no more than 1 cup of food at meals. You risk gaining weight and making your stomach larger if you are eating more than this."