Few years back I needed to do binding on a scalloped edge. After 3 years of delay I finally came across some great directions. Google Linda Franz. I followed the directions precisely and had great results. The best part was how she applied the binding. She makes really long strips but doesnt piece them together until she comes close to the end of the strip. Then you can see where the seam is going to land. If its in a valley you can adjust the length of the remaining strip so you can control where the seam ends up then you add the next long strip. If you look at her detailed instructions you will see what I mean.