Unfortunately this procedure won't always lock the threads in place. Do a practice using your fabrics and your thread to be sure the thread doesn't unravel. I found that some threads (invisible thread in particular) like to work their way loose. On a DSM I found it was safer to either knot and bury the threads, or stitch forward and backward for a distance. On the longarm I've started always burying the threads, unless the starting point is off the edge.