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POI change with lumenkocks

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Unread 11-12-2012, 11:24 AM
Bronze Member
Join Date: Apr 2011
Posts: 42
Re: POI change with lumenkocks

I agree with you. I went from using luminocks to nockturnals and was hitting pretty close to the same POI that my regular arrows do. Even better is that the nockturnals hardly ever fail to light and stay lit. Only when the nockturnal is filled with blood and the blood is not flushed out, will the nock have a tendency to fail. Guess the salinity of blood eats or corrodes the circuitry in them. I've learned to cut the too off a small needle and use the needle and syringe filled with water to flush the blood out. Just soaking it in water doesn't remove the blood. Since I've started removing the blood the blood from the inside of the nockturnal, I've never had a reused nockturnal fail to perform just like a brand new one.
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Unread 11-16-2012, 03:13 PM
Bronze Member
Join Date: May 2004
Location: Kewanee il
Posts: 33
Re: POI change with lumenkocks

I am not familiar with the OD at the back of the lumennocks but I know from tuning experience that even a slight degree of difference will affect broadhead flight. In effect if the diameter is larger than your previous knock you are changing knock height just a tad and with a broadhead that causes difference in hi-lo on target. You may want to try raising your rest setting just a bit to compensate for diameter difference in the knock. I see the logic in the FOC argument but that is a big change for a few grains weight difference.
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Unread 12-14-2012, 02:21 AM
Junior Member
Join Date: Nov 2012
Posts: 5
Re: POI change with lumenkocks

sometimes the tightness of the the nock on the string changes poi, and how it sets on the rest.
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Unread 12-20-2012, 11:09 AM
Silver Member
Join Date: Oct 2009
Location: Eastern Oregon
Posts: 114
Re: POI change with lumenkocks

Interesting post. I may have to try some nockturnals, I was never happy with the lumenkocks. always had trouble with them coming off or not lighting.
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