The Drop Turner Target Stand Double Exposure has the fewest moving parts. The total drip is less than 6", so it's tough to hit the mechanism. The low profile, lets you start with the target 5' at the shoulder. This will help keep all the rounds inside the berm. When it has fully dropped, the target will be 4'-6" at the shoulder, and still at least 9" clear from the bottom of the target to the top of the mechanism.