Most of you will be horrified by my solution to perfect 1/4" seam. Please understand I have severe coordination problems so my solutions need to work everytime I sew. I moved my needle position to be sure both sets of feed dog teeth will be touching the underside as the fabric feeds through, made a note of the position, then measured my quarter inch from there, and using a permanent sharpie fine line, I drew a line all the way to the front edge of the machine. I redraw the line as it wears off. Keeps me from sewing like a drunk, and keeps me from having that damnable curve I kept getting at the end of the line of stitching. Works for me. Bonus, my bindings are much straighter too!