I tack mine down with fabric tacky glue and get rid of the pins. I just made over 60 yrds of canvas bias tape for a job and I'm using my stitch in the ditch foot to sew it on. It keeps the guide right up against the edge of the tape and then I get constant fairly straight seams. Its a cute outfit. I'm trying now to get patterns so that I can make some outfits for a couple of grand kids this yr for Christmas.