I referred to the foot I was using as a stitch regulator BUT it is in fact a DUAL FEED FOOT. It works like a walking foot but you can see better because the foot is open in the front. I have a Bernina 820 machine that I have had for only a few months so I am still getting familiar with all of its features. I also just read in the manual that I can adjust the feed, either top or bottom by turning a knob. I also will trying this along with the suggestions that you wonderful folks have sent me.