A flash light will also give your position away making it loads easier to shoot you and also I can tell were you're looking because you will starring where ever the light is pointed. Racking the shotgun yes it is a unmistakable sound and will send most people running but so will you announcing you have a gun. The reason I think leaving chamber empty so you can rack it is a good idea because that pause it takes you to rack it is time for you to think and avoid mistakes. Lets face it most people breaking in your house think its empty and will split when you start moving. The home invaders will take a little more convincing to leave like starring down the barrel of a tricked out shotgun