Yes I use fullsized tools. They are not that hard to make and result in very smooth figures. The mirror is held by an articulation arrangement that looks like a four legged spider. I get mirrors pregenerated. If I had to hog it out it would be with 50% subdiameter tool TOT. Float mirror on blanket and rotate every few minutes. -- Clear skies, Mel Bartels http://www.efn.org/~mbartels