Wow, I just got my slide lock ruler and I am super excited. This is a wonderful tool, and works so well, no more cutting issues for me. Love, love, love it. Best investment I have made in a long time. I have just started on an omigosh quilt, and the cutting is tedious, so this helps tremendously. Highly recommended. Everyone should have one Here is a youtube demo.
http://www.youtube.com/watch?v=hYOoRetnlfM