I use tubes quite often with great success. I do not use that particular model though. The one I use has a bar 2/3 of the way back that the animal has to walk pass to get to the bait. When the bar is touched, a door slides down similar to this one pictured. The door is resting on a screw that is set on top of the bar. I like these for a couple reasons; they don't need to step on the pan in back of the trap, the back door releases for easy baiting, cleaning or animal removal, and they are good in a situation where an accidental spray would be bad (think hvac units, under houses, etc.) I also will put this near an open cage so I only have to deal with one animal that can see me at a time. I believe the manufacturer is Z-trap.