The ASP Guttersnipe sight was designed to be used with the Quell stance which accessed the subconscious to balance the yellow panels. The Devels was targeted more to the more mainstream shooters who clung to the more common sighting system
The Guttersnipe was amazingly fast and accurate once you figured out how it was designed to be used. It was designed, as was the smooth exterior of the gun, to be used under stress as opposed to plinking at targets