I use the FIX option on my machine, which is essentially just the 3-4 stitches in place. It does give a little thread "glob" on the back of the quilt, and if top & bottom threads are the same colour as the back it looks fine, I don't like how it looks if I have a thread that contrasts to the backing. In this case I prefer to back with fleece or flannel as the thread globs hide better in it.