I'm going to be starting a UQ in the very near future and am thinking of trying a different construction technique around the edges. First off, does a double fold seam add any structural integrity to the seam? My thought is no as the outside will still only have one layer of fabric. My thought is to do a 1/4" seam and use a lighter to get rid of the strings since I don't have a hot knife. Then I'm going to make use of one of the double fold bias tape attachments with a 1" piece of ripstop to make the shock cord channels on each side. I already need to trim the width of the fabric down, so cutting a couple strips with a rotary cutter shouldn't be much extra work. In my mind anyway, this will be less fiddle factor than trying to do a double fold seam big enough to run cord though and lighter than using grosgrain. It also allows me to trim the quilt in a different color if I so desire. Anyone see any flaws in my logic or plan?