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Hi, thanks for the advice. I have been working both
with TOT and MOT . Also, looking at the Folcault image, at the COC, when the
knife nulls the image, a bright thin cresent appears on the left side of the
mirror, by using some gaffer tape as a guide, the width of this bright
cresent appears to be the same as the area not picking up
polish, . So, back to fine grinding ( if so which grit size) to get
rid of this, or mask the outer 4 mm and figure ?
Regards
Darryl Wilson
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