Like Sam and Jack, I think I have uses for both.
I prefer a full, modern shaped, tightly curved, pistolgrip for clays, whether shooting from mounted or low gun position.
For my upland hunting, any of the more open, larger radius, pistol grips (including "Prince of Wales") and the straight grips are preferred.
To me, it's not what position the gun starts from that influences my preference for the grip shape. It's whether or not I have to carry it for long periods at the ready.
Somewhere I read that a very high gullet (upper tang line) of the stock will cause the shooter to rotate the wrist and somehow influence the swing adversely. I think it was in Michael Yardley's book where he quoted something from the maker Churchill who pioneered a lower gullet on straight stocks. The discussion stated that while the high, very straight stocks were asthetically pleasing, they had this adverse influence on the swing. Evidently, the competition shooters believe in the pistol grip being superior for gun control. I don't believe competition guns have pistolgrips out of chance.
