I have the Queen Quilter and nothing but problems. The tension for the last two years is always needing adjustment and now just today when I stop quilting the needle keeps going and I have to reach to the back to depower the machine....meanwhile there are 6 or 8 or 15 goofy stitches that I have to take out. Could be the toggle switch is bad and it might be something in the wiring into the control box because when I wiggle the wires the machine stops stitching. And, of course my warranty just ran out.