so we all know that flannel shrinks like crazy but I'm going to make a rag throw out of the Needle and Wool layer cake and I'm trying to figure out how to do this.

The back will be flannel too so I could prewash that, but the layer cake can't be prewashed. If I make the quilt and wash it, what are the chances that the two flannels will shrink the same amount? I think it's an all or nothing situation as far as prewashing goes.

What do you think? Make it and just hope the shrinkage is close to equal or prewash the back first?

Thanks ladies