Cutting the barrel of an Auto5 lightens it, making it cycle faster due to reduced mass and inertia. I have a 19" barrel that needs the friction rings set to magnum for light loads, and that simply batters itself on heavy loads due to the lack of barrel mass.
-A conclusion is not a destination, it's simply a convenient place to stop thinking.-
-Reading a thing doesn't automatically make it so; repeating it doesn't necessarily make it any truer.-
-Every Texan should be a member of the Texas State Rifle Association.