Presser foot up or down?
When you store your machine or finish with it for the day do you leave the presser foot up or do you put it down with a piece of fabric between it and the feed dogs? I always left mine up but I have been told not to because it puts too much stress on the tension springs. Which is it? None of my manuals, from vintage Singer to modern Pfaff and Brother, say anything about the presser foot position during storage or down time.