susiequilt-I had always thought quilting in sections meant doing 3 separate sections - top,batting,bottom and then joining all the seams (hope this can be understood) to end up with a whole quilt.
I certainly like your plan of having the whole top & bottom, but just partial batting and adding as you go along. I have a queen top that I did a few years ago and really didn't know how I was going to quilt it without a huge headache! Thank you thank you! This way never occurred to me!