Does anyone here have any experience with the Speedfeed Pistol grip while shooting? The angle of the grip looks interesting; does it help in managing recoil? I saw this yesterday, and thought it would be neat to equip a plain jane 870P with this grip. Granted I know nothing about pistol grips on shotguns, I thought I would see what you guys have to share. An 870P with a side saddle and the Speedfeed PG would make a good Zombie stopper (kidding)