I understand many don't like Luminocks. I've had marginal luck with Tracers. The first one failed me, I believe because of the KE of the bow and large dia. arrows. They sent me a new one.

Here's a little tutorial I did on the Tracer. It lit 50% of the time but that was the one that failed. I haven't played with the new one they sent me except to turn it on and then off.

CLICK ME for Tracer Tutorial VIDEO: