Lucas, I am assuming you are asking about my DOH. It is nothing fancy, they cut the front of the holster down a couple extra inches, formed it with a much deeper sight channel and flared the top out a little and rounded off all of the edges. It also has an adjustable knob on the side to apply or relieve tension on the gun. I have a really high caspian front sight on my Limited gun and was breaking fibers occasionally with a regular DOH. With the deeper sight channel and the other features it draws really smooth and is actually designed to come out easily even if you are twisting the gun slightly on the draw (el prez). I prefer it to any of my other holsters and was actually thinking of having one made for my open gun (shorty with docter dot). They also did some work on my mag pouches and the best part is none of this cost me any more than the stock items would have (of course I know the manager and live very close to the factory).