Lighted nocks are a great tool for videoing your harvest also.....

I know four different scorers for P/Y and B/C and all have said that it is not against the club rules to use lighted nocks....

and as for the legality issues almost every state that I have hunted including Colorado they are legal to use... Most state laws , state the you can not cast a beam of light onto your animal....I.E; lazer's ,spot lights... lighted nocks do not help you to get a shot on a animal, ALL they do is amit a small amount of light to be able to watch a arrows tragectory...it does not aid in the harvest what so ever....