I really don’t like hand sewing the binding. I sew the binding to the back using exactly 1/4” inch. Then I flip it to the front, and use a blanket stitch to sew it on the front. What I found is that it’s important to only pull it to the front where it just covers the 1/4” stitching line. It also helps to move your needle over so the edge of the binding “rides” right along the inside edge of the #20 foot. And I also use a 2 1/2” binding.