Flannel Question
If I use flannel to back a pre-washed cotton quilt top and I DON'T prewash the flannel, will it cause the front of the quilt to pull horribly out of shape or just make it look wrinkled and quilty?
Also, can I just piece a backing from NOT prewashed flannel and then wash the backing before I add it to the quilt? I don't want to wash smaller pieces of flannel before I piece them into a backing but I may have to...need expert opinions.