The tutorial might take a day or two longer. Work is getting in the way of the fun stuff.
Jim,
I modified the bottom to make it easier to use. Will post a picture later on.
George,
Yup. You got it. I was trying something a little different on this screw. I actually have an idea for it later on, once I build the real leg vise. (Involves Marbles and children, so the round bottom and smoother edges were a must.)