sections 3,4,5 of <http://www.warner-criv.com/techtips/tools.aspx
I used a lighter fluid (heptane) & WD-40 combo for lube..
I used a level on "spongy fabric" as a straightedge after measuring offset
of spinning wheel center to edge. The ~1" thickness of the level guided
the 1-3/8" high flat edge of the cutter along perfectly perpendicular. I
would recommend this orientation. Held it at 90 degrees and pulled toward
me. The balled handle had a flat. Started 1/8" in from edge, and finished
pulling through, which did leave a 1.5mm chip, which will be hidden.
Looked with magnifying glass and couldn't see the score line after one score
(I thought of lifing 15 lbs. off ground)
Used a plywood sandwich on TS edge, and gloved hand in center of waste about
3" away (at end) and it snapped apart perfectly.