Thread: "Canal Pencil"
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Old 10-10-2013, 07:33 PM   #2
rayndogg
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Join Date: Jan 2011
Location: Fall River,MA.
Posts: 103
I'm not sure, but was told that it controls the roll and action of the plug in the strong current that the canal produces. Not sure if that is the reason, but was what I was told.
Rene
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