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08-18-2012, 11:15 AM
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Originally Posted by overpass View Post
Zone start vs QoC depends on whether you are using shot-based or goal-based metrics. QoC is relatively more important for goal-based metrics like plus-minus (because top players have better SH%) and zone start info is relatively more important for shot-based metrics like Corsi (because shots off an o-zone faceoff tend to be low %).
That makes sense as a general explanation but if among top d-men there's a wider range in %OFF zone starts (e.g. Karlsson 57% vs Weber 45%) than the range in QOC (OP's assumption which I think is flawed, as I explained previously), the %OFF adjustment may still be more significant on +/-.

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