Seems like a lot of circular talking here to me. Where is the "Extra Challenge" of carrying the small bore, with it "Magnumized" into the "Semi-Equivelent" ballistics of a Wally-World 20ga. A Dainty little 3½-4lb 2" chambered gun carrying 5/16oz shot is the way to go. AH, but it's range is limited & it doesn't have enough mass to swing smooth, WELL, isn't that the whole point. Your 6lb, 3" guns are simply "Cheaters", Shame-Shame on you.
Personally, I am well aware that I am only an ordinary/average shot & need all the help I can get. My "EGO" is given a better boost by making a clean kill than by having a small hole down my barrel, so I am quite content to carry 20 through 12's depending upon exact type of hunting being done.