Sounds to melike you didn't do any practice shootingwith themin low light conditions. If you had done so, you'd haveknown what to expect rather than wind upbeing startled by the tracer effect.

Lumenocks are not something I'd ever use, but I am a big proponent of shooting and practicing withyour hunting gearin ALL conditions. All equipment-related suprizes should happen on the practice range, not in the stand. That's the critter's turn to suprize you.