I am making a mock cathedral window quilt. I don't know what I am doing wrong but all my circles seem to want to curl up after I sew them. My tension looks good. I don't know how to fix the problem. I tried a longer stitch and I tried a shorter stitch. Heck I even went and bought a walking foot. That made it worse, everything looked gathered using that foot. I am sure someone can lead me in the right direction to fix this. I was extra careful to make sure my circles are all the same size. ummm and thanks for any help you can give me. Deb