It is a short video showing spinning the vise open, placing a length of 1X in the jaw and spinning it closed. When it closes, without further motivation or touching the vise handle I edge plane the edge and the board does not move. Then I show how much more handle movement is available with little effort, plane again, then remove the board with again little effort on the vise handle to open the vise and give it a spin.
This is one sweet vise. It is a very easy install and is reasonably priced. I will be replacing my wood screw with parallel guide vises on the other benches with the BC system.