I made a baby blanket 7 years ago and used Minky for the backing. I don't recall having any problems with it. I don't remember why? I was thinking of doing some more baby quilts with it on the back but now I am not sure. Several people in my quilt class which meets today have made quilts with minky as backing and as squares. I will ask them what they used . If it stretches so much I can't imagine how one would keep a square straight. So now you all have me curious and I am going to ask them. Our instructor made a huge queen size quilt with Minky as the back......I wonder what she did to keep it so straight. I'll let you all know what they say.