I got attracted to watch the video when Sew Freak said she "couldn't wait to rip out another seam again!" That caught me. So, I watched the video and I never knew that either!! Going to have to give that a try. I have been using one of those scalpel looking blades which works well also, but have also accidentally put holes in stuff (not good!) Thank you for bringing this up. :-)
Marysewfun