I just started my 1st Raggy Quilt using quilt shop quality flannels. Instead of just quilting an X across the squares I decided to have fun with some of the decorative stitches on my sewing machine, and am using different stitches for each square (still stitching an X) . But then I got to thinking...since the directons say to NOT prewash the fabric, when the blocks are sewn together and I then wash the finished quilt to get the fraying, are the blocks liable to shrink differently depending on the stitches? I will probably test it out with some scrap pieces before I continue with the rest, but if anyone else has tried this would you let me know how it turned out?