Bob, I JUST came in from shooting it for the first time... I shot it five times from 40 yards with JUST enough light to see my pins through my peep.
These things ROCK! It was so cool... reminded me of shooting tracers back in night-fire excercises as an MP!
I picked up five more of the little batteries at our local Wally World this afternoon, so I'll have a quiver full this year.