I have Viking machines, and Viking has a walking foot with interchangeable feet on it. So I can have my walking foot and 1/4" too. I just made 2 flannel quilt tops and used the walking foot. So much better than trying to sew straight on flannel without it stretching. Think I will use it for all piecing from now on, goes so nice over joining seams without any shifting. LOVE IT! I will try it on bias seams too.