I have made 3 baby and 6 full - queen size biscuit quilts and I made them much different than your method. I have a thin book with several patterns for different projects. All but, one were in the irish chain pattern. I cut a 4" square for the bottom and a 3" piece for the top piece. You sew to center and put a tuck so ends will be even, do this on three sides, put about a golf ball size piece of polyester fiberfil - used to make stuffed animals - Then you sew 4th seam like the other three. When all are done you sew all the biscuits together into rows and then all the rolls together. All seams are 1/4" and don't use too much fiberfil or it will be hard to sew all the seams. They are really pretty and look like biscuits. All will pretty much look the same and stay poofed up. Quilt is tied instead of quilted, back is sewed on like a pillowcasee with piping around the edges.