Oh! The quilt bug really bit hard! LOL! If you leave the girls unquilted they will puff out from the rest of the quilt. Unless the rest of the quilt has lots of spacing between stitching lines. If that makes any sense. I'm not a historian so I don't know if there was a right or wrong way to do SBS. My grandmother's pieces were all hand pieced diamonds, a few are hexi's. No appliqued quilts that I know of. She always quilted about a quarter inch from her seams.