Gobstopper,welcome to the forum,pretty bold statements that your making their.Understand that your talking to some guys here that I garruntee been huntin turks long before you have,so I'd think I'd show a little respect in the way in which you express yourself and a lot of the guys will do everything they can to give you their own experiences and try and help out.Thats if you think you might need it of course!The question I have if those 4x6's are so good that your preaching about why in the hell aren't you using them and shootin a 3 1/2.20 years ago I turkey hunted with a 12 gauge also,and when those duplex loads came out I patterned them against what I was using at the time which was #6 Fed 2ounce super mags.The Fed outshot the Duplex's by about 10%.Just because it works for you doesn't mean it works the best in everybody elses gun,like Maytom said.I shoot a 3 1/2 inch myself and Winchester loads are about worthless out of it,but Remingtons pattern exceptibly.I shoot my own reloads now out of my Ithica mag 10 and it took a few years to absolutely work up a load that maximized the efficiency of the pattern of my gun.Even though I've shot many birds with other loads 4's seem to be what it likes best.So dont question the smarts of the guys here as to weather their turkey hunters or not,cause believe me when I say many of us no for sure what shoots best out of our own guns,and speaking for myself it wasn't the duplex load your talking about!Try shooting different sizes and loads out of your own gun on paper, and I think you will see the difference.Later Bobgobble