The dp's are worth it. You can pre-bait and set them at home and then stick a 1 inch dowel rod in them. You can just take the dowel rod out and set the trigger slam in an earth anchor and go to the next. I have 2 dozen duke dp's but I think the new Z-traps may be better. The trigger on them are push or pull where as a duke is only a pull trigger. Dp's are alot quicker.