I found the cords too fiddly, and uncomfortable to sleep on. I don't like attaching my quilt to my pad--too much air gaps. So, I found an alternative. I use gros grain ribbon, and sew one of these on:
I then cut the ribbon to length, and thread it through gros grain loops on the quilt, then the adjustable side of the watchband buckle. Flat, lightweight, holds its tension but can be easily adjusted, and removed if not wanted.
I was actually losing sleep having to fiddle with the shock cords. Now I sleep much better. I know he's trying to keep production costs low by not having multiple this's and that's to purchase, but I think this system just works better.