I’ve had the black box for one year, not one catch. I loaned it to friends and it worked like a charm (3 dead in 48 hours), It’s been in place for one year, been tripped a dozen times, not one dead gopher. I move it to the freshest holes every few days, I trip it to make sure it works, I’ve tried various strategies of deployment, the square version and the tubular one with the light hole, burried it deep, shallow, angles, you name it. I know they work, I’ve seen them outperform every other trap, I’ve even seen this exact unit work on other people’s gophers, which is why I am only partly joking about my “supergophers.”
If I do ever catch one, I wonder if eating it will make me immortal?