Hmmm.
On my little 8.75 incher, I have only heard the screech when I turn the
mirror the near quarter turn or so upon the tool between a series of
strokes. I have never been able to hear it during 'COC' or 'W' "standard"
stokes.
Why should this be so?
Regards,
Anthony Butler
G7JWH
Coventry
England