NOR is a 25g weight difference (we both know it's FAR less than that).
No actually WE don't know that. I have not even touched one or seen the specs on the home made lighted nocks. I do know that there is a battery with it, I assume that has to weigh something.
I CAN tell you that after 30-40 shots from my other hunting arrows vs. the lumenok equipped arrow......I find NO noticeable difference in arrow flight. That tells me what NOT to be worried about.
That may depend on how far you are shooting though. Like I said, in your hunting distances, there may not be a difference.
In any event, you seem to have your mind made up already. Happy trails.