I think we need more information.
Are both questions about one quilt, or are these 2 different quilts we're talking about?
Is your rag quilt made of quilting cotton or flannel?
If you are in the camp of not liking your quilts to have that crinkly shrunken look, then prewash all your fabrics before you make the quilt, use a poly batting, and after the quilt is finished, wash in cold and dry on an air fluff setting or on a clothesline.
I'm with pocoellie, I don't really understand the question about the rag quilt.