I have a janome and I had to loosen the bobbin tension quite a bit to quilt and get my stitches right. This was right out of the box. It is even worse when I try to FMQ so I bought a second bobbin case for that where the tension is really low and I swap out to FMQ. Once I got the tension right for the walking foot, I found it is fine for piecing, too. Hope this helps.