I don't sew over pins. Since my sewing machine dealer is 100 miles away, I don't want to have to make the trip because my needle hit a pin and got knocked out of time. Also, with my luck, if I were to sew over a pin it would break and hit me. No thanks! I just remove them. It really is not that tough to remove the pins. Why sew over them, it's just as easy to remove them.