So far I've only used flannel on the back of one quilt. Loved working with it. I bought Moda Marbles and it was awesome fabric. And I don't really care for the cotton Moda Marbles (don't like the texture of the 'marbles'). But the flannel was delicious! Would highly recommend their line of flannel. I am a prewasher and did so with the flannel as well. I had to piece the backing and had no issues with stretching at all. Would love to do an all-flannel quilt at some point. And I always use W&N and hand quilt.