"Sharpness" Tests, What do you use??

I find common newsprint still the best overall testing media.

A slow draw-cut along the full edge will quickly identify any problem areas or areas of differing edge quality.

For edges with acute angles, I do several firm-pressure full-edge draw-cuts into hardwood or hard plastic, followed by newsprint draw-cuts to reveal any potential wire-edge problems.

Newsprint is common, available and uniform in content - whether it's from the Boston Globe, LA Times or Denver Post.
 
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