Shotgunjones, you are the only one here who is talking about covering up the bird with the muzzle. If you are covering up the bird with the muzzle you are simply not moving the gun fast enough to lead the target. And, yes, you can shoot wobble trap with a standard trap gun because only a few of the birds go out straight and drop off. And when they do, you have to be way under the bird. Not many people want to hunt with a gun that shoots 80/20 or 70/30. Especially duck, geese, etc. because most of the time the birds are dropping. THEN, you would probably end up covering up the bird with the muzzle, like you say you don't want to. Field guns are flatter shooting than trap guns. If you take a field gun and try to pattern it with about the beads stacked or a gap between the beads, you would probably shoot over the top of the board.