I'm so glad I took the time to wash this sample, before proceeding any further, with the project. I'm not usually that farsighted, but since I was using denim I wasn't to sure how things would wash up. I'm happy to say it all came out in the wash......all my conclusions anyway.
I'm preferring the zig zagged edge.
I'm not particularly fond of the zig zag on the back.
Sample of sewing the fabric down, with a zig zag stitch, then cutting away the fabric using regular quilting cotton.