I have the 730, but don't use these features for quilting, though I do for other types of sewing (dressmaking, household, embroidery). I prefer to leave longer ends of threads and sew them into the quilt out of site. I start by bringing up the bobbin thread to the top, hold on to it and then start and finish my quilting with about 5 stitches very close together (but not on top of one another, which would look unsightly) I then do another couple of stitches slightly longer, and then another couple again a little bit longer then proceed with my usual preferred length. All of this happens within about 1 inch. At the other end, I reverse the proceedure. This way you don't have to do any back stitching, which always seems to show to me. I have stopped knotting the ends of my thread, before sewing them in, as the very close stitches hold well enough for me.