How do you know when you are full?

Good for you! you measured! best way to start..

If you eat til you are full, then you will be miserable in 20 minutes.

I would have added a bite or two of light carb veg. . protein requires some carb to be properly utilized. also if you stop eating and are hungry later you can always go back and add another 1/2ounce fo meat. and vegetable in like portions.

The gurgling sounds is th food /fluids moving down thru the narrowed passages. Get used to it,its there to stay. separate the food and fluids by 30 min was my orders... fluids stretch your stomach...the longer you can maintain smaller pouch size the easier portion control is from now on. Your stomach is not healed be very careful now, it will pay off big dividends later.