This technique was devised by Mary Brooks Picken in her book “Sewing for the Home” (my edition is from 1946).
You shouldn’t have any trouble using this technique and a Singer/Simanco zipper/cording foot as the extra threads used to make the stay lines aren’t used, therefore you won’t need the special foot to make sure you stitch exactly over them.
Copyright Sarah Bradberry, July 30th 2010. All rights reserved.