I've seen those traps in the store and have been tempted to buy them. Instead, I was inspired to build a .25 gun that would shoot a bullet through the gopher when it trips the trap. I haven't finished it to that point yet, as of right now it is a short gun that is mounted on a tripod that can sit over the opening of a hole vertically or horizontally and then you can pull a string from a distance to discharge the bullet. As you're probably about to point out, this doesn't work so well because you can sit for hours before the gopher finds the open hole and does something about it. For obvious reasons, I'm uncomfortable using it unless I am right there attending it. It is kinda nice when nothing is going on and I can sit in the lawn chair and watch. I guess I'll have to spring some cash for the traps. What about using just one right before the fork in the tunnel?