I really like using Minky on the back of quilts. I am not sure how you are having it quilted but what I have learned is if you have the most stretch going left and right it quilts up wonderful. If you have the most stretch going up and down not so good it stretches out. Be sure and feel how it stretches and you will understand. I have 2 pictures posted in my album [
http://www.quiltingboard.com/members...bums19049.html ] that has the minky backs in fact I have two more am finishing up. What ever you decide I am sure will be wonderful!