I have quilted three quilts so far....so I'm new to it too. But my sister suggested a rectangle made with pcp (sold at Joann's) and I like it better than the wooden hoop I also used. I didn't have too much of a shifting of the back. More than it should have been. Maybe I didn't pin enough. But I have heard basting is also an option, and I will do that with pinning because I like no shifting of my backing. It didn't show after I squared it up and put on thebinding, but I can only imagine that spray basting would have to make quilting it harder. I might try it sometime though...just to see. Its fun to read what each one does. I like to learn from the pro's. Thanks.
Jeanne