I don't think that you are suppose to try aiz zagging with a walking foot. Because a walking foot's job is to try and make the upper fabric and lower fabric move forward as one, the sideways action of the zig zag stitch would just throw everything out of kilter and I think you'd probably break a needle or even put your machine out of tyme. If this isn't the case, I'd like to know because I've always wanted to use some of my fancy stitches when quilting and using my walking foot.