I reshaped a 16 many years ago, brought it down to 6 1/4 lb. as I remember, eliminating the "spears" and semi-rounded the action body. Stocked with good English walnut, straight grip. Unfortunately that was in the days of film and I have no digital images...
Turned out pretty fair, there is a photo of it in Fine Gunmaking: Double Shotguns with a dead pheasant.
Nice gun that handled nicely. It lives in Atlanta...
Best,
Steve