I know from someone who use to work with it for utility quilts that she would place a piece of plain white paper (like for making copies) on the back side and some odd reason it wouldn't stretch. She would remove the paper or not depending on her mood. She was from the Mennonite community and loved re-cycling fabrics that others hated or didn't want. You might want to give it a try on a small but simple one-square pattern lap quilt as a tester. If you don't like it you could donate it to charity or find an older quilter who has worked with it in the past. Just some food for thought.
Tricia