AS I was frog stitching my current project, I realized that I have a technique we have not discussed. It is something I was told never to do, because of the danger. I have been doing it for 18 years with no problems. For long seams that need to be taken out, I use a rotary blade that I have replaced. I hold the seam open, after using the seam ripper for about 1/2". I cut the seam using the rotary blade, held in my fingers. Maybe I need to take a picture of this technique. I might add that I have only been cut by very sharp tools twice in life. When I was a child, a neighbor brat yelled, "BOO!" in my ear as I was carving some wood. The other was when someone right behind me yelled as I was trimming wall paper. I needed stitches both of those times. I have been warned about my blade technique, but it works really well for me.