I was just watching America Quilts Creatively and they were showing how to make a Lone Star Quilt using the interfacing. They used it like paper piecing and after each piece was sewn on they fused it down in place. Once each strip was complete, you fold the interfacing and stitched on the line to connect the strips. The diamonds and points were all perfect. Then instead of setting in the corner blocks, they pieced triangles to each diamond block and when you sewed all the pieces together you could not tell that it was not pieced in the regular way.