Can you make tools from plaster?

[tonyfoale]

Fascinating stuff Tony, the graph result is impressive.
A lot of tuners will keep their work to themselves to keep an edge, I like the way you share it with us.
Regards
Alan

Alan, (and any others of course)

Here is a link to some tests and results as promised. https://www.dropbox.com/s/v0vox1ygm0...tests.pdf?dl=0
This was from a few years ago and better results have been achieved since then.
Thanks for your interest.