From what I could see from the pics, it looks like the "quilting foot" has a piece on the side that would perhaps be used if you wanted to stitch 1/4" from the ditch. Maybe the piece would lay in the ditch to help guide you along as you quilt to insure the 1/4" distance. The "piecing foot" simply looks like a foot to use to make sure your seams are 1/4". I'm sorry I can't be of more help, but I don't own a Brother machine.....I own a Pfaff. :oops: