One of the famous quilting experts who was on Sewing with Nancy, can't remember which one, says she uses a small zig zag stitch so that she catches both sides of the ditch. I've tried that and I like it. I've also used one of the decorative stitches on my machine, set for a wide stitch to sitd. I like that way too. I just bought a sitd foot but i haven't used it yet. Not sure how that would work since you wouldn't be using a walking foot. Anybody have experience with this foot and your backing "creeping?"