Thanks for taking the time to write this. It is good information that I will keep in mind. I already do most of those things, but I did not know about the pieced backing. I sent one quilt to be quilted with an add on piece to the backing as I had not cut it long enough. When the quilt came back, there was a slight separation about and inch and one half long about an eighth of an inch where the seam had come apart. It had been sewn ok and I think the tension of the fabric caused it to separate.