Jpc why not just use the quick fletch and Nocturnal lighted nocks. Unlike the Luminock, the Nockturnals are the same weight (or very close) to your arrow nock and will not effect your POI. Tracking a Nockturnal or any lighted nock is easy as falling out of your treestand! And its really gratifying to see it disappear into the pump station or boiler room of your target.