Onebyone.... I have metal yardsticks from Harbor Freight that I use, one is 1 " and the other is 2". I also use Crayola washable markers with the fine tip to mark my quilts. My problem is the walking foot itself, for some reason it wants to "scoot" over a stitch or two when I stop, if I don't notice it right away and keep sewing I have several feet of stitches that I have to rip out. Nothing I've come up with as of yet seems to correct the problem. Maybe I simply got a bad walking foot?