Often times big trees with those groves cut into one side indicate a spike rubbing that tree. Ive seen trees like that around here, and one day I caught the culprit while on stand, A dandy of a spike, must have had 8" tines.
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Hoyt and Benelli.....Best of the Best.
Trevor
www.lostrivergamecalls.com
You tried your best and you failed miserably. The lesson is 'never try'