I'm really looking forward to getting either a KNK or Scan 'n' Cut for Christmas since either of those will mark my seam line on the fabric. I got a wonderful 1/4" piecing foot with edge guide & a narrow cutout that I found is ideal if I feed my fabric so the marked seam line is always visible through that little slit. I get that perfect 1/4" every time ... if only my cutting skills were as good as my sewing.