I hate both 1/4" feet that are for the BL....the rail on right catches it you are trying to cross over a seam.it's only good if you are stitching a straight strip/piece....the other without the rail on the right, but that diagonal edge on the left always caught the edges of seams and wanted to fold them over....so, I invested in the good ole little foot from Nancy's notions....perfect 1/4" seam, no snagging or folding of opposing seams! Seems sometimes the old designs are better than the new ones!,,,I even informed the dealer about what I did.......