Mike, a lone whistler wheeled last week from behind the tiny island where I had my decoys and presented a dandy shot flying from my right to left, afterburners on. Jake my Lab retrieved and spat the bird out on the shore, wouldn't bring it in. The breast and bone were crushed from a modified barrel. Flat, no exaggeration. One size or one choke or 40 years of upland does not fit all gunning experiences. My original comment on choke was that I'd spent too long, to the point of obsession in the arcane world of choke, and that generally none would be fine with me for my kind of shooting even though I have only two guns bored cylinder first-barrel. I've been an upland gunner and shot pen-raised pheasants---once---during my 70-plus years with a shotgun. Upland and waterfowl here are different worlds.