I use any of my decorative stitches on my machine that travel both left an right of center so that when t
your needle runs down the ditch line or rather you start centered as you would to stitch in the ditch, both sides of the binding are sure to be caught by the stitching. I have a serpentine vine with a leaf that I use most often. The other thing I've started doing more often now is to use Elmer's school glue to tack down the binding so it stays put, while I stitch a straight line of stitching in the ditch from the front of the quilt.