This info is for free motion quilting using zero stitch length with feed dogs down, for the Sapphire 870, etc. It was originally posted on the Sapphire group page at Yahoo groups: Set machine for free motion floating, use your "R" foot (darning), set fabric at "C" for heavy, leave feed dogs up, set stitch length at zero, needle down and use an embroidery needle. Have found that you can use any open toe foot, and embroidery needle may be optional (am using a Superior topstitch 80/12 titanium -- for just about everything). Once you have gotten used to this a little, use your start/stop buttons, and set a speed you are comfortable with -- then all you have to think about is the movement of the fabric -- if you get spooked, hit the foot pedal and the machine will stop. I just did a little practice to be sure I have all the settings right -- my needle doesn't seem to want to stay down, but it's still working perfectly, not an eyelash or whiplash to be found .... have fun!