| Calculated
Point Attributes |
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| • | Point
Length Reduction (PLR) |
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| • | PLR = Unused
Point Length (UPL), |
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| expressed as
100%, minus Resharpened |
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| Point Length
(RPL) divided by UPL |
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| • | PLR = 100 –
(RPL/UPL) |
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| • | PLR relates
the percentage of Point |
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| Length lost as
a result of each series of |
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| resharpening |
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