I have shot nockturnals for the last few years. Honestly, I liked them for misses more than anything. Shot a at a buck a three years ago and was sure it was a good shot but couldn't find the arrow, and only a speck of blood. After searching for an hour or so, it got dark and that lighted nock was like a lighthouse in the woods. Found the arrow with zero blood on it, and realized I shot low and just gave him a haircut on his bottom side. Now that damn deer shows up on my trail cam every year and is a beast, but wont show his face during shooting light. Either way, that was about the only time I was happy with them, so this year after switching to BE Spartans with their H nock, I'm a lot happier.