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Old 02-03-2016, 08:14 AM   #7
Six Point
Join Date: Oct 2013

ENEWMAN, too me it looks like the picture of the paper tune shows that the EFOC arrow has a slight nock low tear which would explain what we are seeing.
Even though you may have the spline close from your calculator you know how much a little difference would do impacts.
And you are correct that shaft flex my be the culprit and causing bounce off the rest launcher arm, EFOC arrow has 200gr more load of the front causing this, more resting weight on launch arm resisting movement.
Shoot the bareshafts and see what happens.
I never tried a EFOC arrow on my compound but all my traditional bows are set up with EFOC and when bareshafting they try to nose dive but then again I have a higher nock point set due to finger release.
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