We have attempted our first Lone Star Quilt top and have ran into a problem, PLEASE HELP. WE were using a pattern that you piece eight strips together, cut them at 45 degree angle into eight strips, then piece those eight strips together to form a diamond and repeat until you have eight diamonds and sew them together with blocks and triangles to complete the top. After piecing it all together, the center of the top is bulky and baggy? What may have caused this problem? The rest of the top is straight and even, but the center is just bulky and baggy. Any advise on preventing this on future quilt tops we make would be GREATLY appreciated. Thank You