Adrian never said his 20 throws a denser pattern than a 3" or 3.5" 12 gauge. He, myself, and others were simply pointing out that the twenty is a fully capable turkey gun in the hands of a hunter that is willing to invest the time to make it one.
And I never said that a 20 gauge sucked as a turkey gun. I simply said that typically you will sacrifice something on pattern for the benefit of lighter and easier to carry. And typically you will.