I just installed a vacuum chucking system on my lathe a couple days ago. All I can say is wow! If you can swing the money for something like the Oneway Vacuum Chuck System or rig something up yourself, Just Do It. For my first project with the vacuum chuck, I mounted an 18 inch disk of 1 inch bloodwood (heavy) and turned both sides into the top half of a lazy susan. Worked like magic. I love it. (Except the couple times when I turned off the vacuum pump before turning off the lathe... had to rework the edge a bit.
Ron Wilson
Ron Wilson