Capo bar file

[Bill Spurlock, RPT]

Have any of you had a chance to use the new diamond abrasive capo bar file
manufactured by Guitar Shop Supply Co.? It was designed by Ken Slater, and
allows reshaping capo bars in the piano. Based upon my own experience and
suggestions from a couple of others, I'm considering two changes to its design.
First, the  tool shapes the capo profile to a diameter of around 5/32" (radius
of just over 1/16"). Most manufacturers and many technicians seem to prefer a
slightly sharper radius. Secondly, the edges of the tool (on either side of the
abrasive-coated groove) are not coated with abrasive, so that on very blunt
capos these edges ride on the cast iron and prevent the file from cutting. Ken
Sloane, I assume you have used this tool. I'd appreciate yours and anyone else's
suggestions on these proposed changes. Thanks! Bill Spurlock