The problem with these feet, is that yes they do a 1/4" but not a scant which is what most quilters need. I own 10 Berninas and have to make sure I keep my seams a smidge inside the edge of the 37 or 57 foot. The guide on the 57 foot is pretty useless if you want a scant 1/4" unless you move your needle over. So, unless you keep the seams inside the "toe" of the foot, you will need to move the needle over one or two spots to get a scant 1/4".