I have the new 830 with the wider width between the feed dogs, so my favorite #37 foot does not do well with it. I bought a #57, but I didn't like it. It's probably great for straight line piecing, but I rarely just put straight edges together. I didn't like it with piecing triangles to squares, etc. I use the zig zag foot and just move the needle over so that the edge of the foot guides my 1/4". I do agree with the straight stitch plate from mommysewist.