Great information. I have a Slimpicity and I can only move my needle to the right or left. Are there machines that the needles move more than that? I use the outside of my foot and I seem to get a true 1/4" seam and it works fine as long as I pay attention all the way to the end. When I have to try for a scant I am not sure what to do. Any help would be appreciated. How do you cover the feed dogs? Thanks for the thread. BrendaK