Ok you guys that quilt with your 15-88, 15-90, 15-91's do you use a 1/4 inch foot or do you just use mole skin, painter's tape or something similiar to make a 1/4 mark so your piecing is accurate? I am pretty sure there were no 1/4 feet originally for these machines, at least not for the 15-88, which I have?
Nancy