Batting does have a stretch side verus a more stable side. Read this is Harriet H? book on machine quilting. I zig zag my batting together and have never had a problem. Never tried the tape. Would iron on interfacing work????
Originally Posted by SittingPretty
I've machine-pieced batting with a zig-zag stitch, and the end result in the quilt works really well. One problem I did have once was that apparently my batting had a grain, or something. When I pieced it together, one piece was curved when it had been straight. I figured the two pieces must have had "grains" in perpendicular directions. Hand piecing could solve the problem, but I just grabbed a different piece.