I would think you should have the hole next to the wall so they can run right in.View attachment 2992566
Sorry, @aart, I'm not exactly sure which end is supposed to go next to the wall. I am assuming you mean the "back" end, not the opening where the mouse goes in? How does that keep the mouse from backing out of the trap? Color me dumb, I'm not getting it.
But thanks, anything that helps with the kill rate is good info!