I have a couple of thoughts.
Be mindful that Smith, probably more than any of the other makers, really used trap as an advertising medium. An extension of that is that I have to imagine a trapshooter would be more inclined to put Crown grade type money on the table before a field shooter would. The preponderance of vent rib guns is likely wrapped up in all this.
I have seen and handled a couple of Turnbull Crowns. Generally good workmanship, but they have always seemed so, what, brassy? There was nothing toned down or subtle about them. I kind of think I would rather save a couple thousand and buy a nice original.
