If I have a "busy" print for the back, I piece it "sideways", that is the length of the fabric will run perpendicular to the lengthof the quilt top. If the quilt is not longer than 80 inches or so, it will work with 42-44 inch width fabric. Cut longer than the width of the top for each piece, and press under one long edge. Now lay it on the opposite edge of the other piece so that the prints line up perfectly pin, and top-stitch. Voila! You cannot see the seam because the print blends together and looks like one continuous print.