Have any of you who own a .375 H&H ever decided to go with one of the .375 Improved versions like the Ackley or 375 Weatherby? I rechambered my H&H to the Ackley version, and even though it shoots great groups, I was disappointed in the fact that I was only able to get another 50 or 60 fps more than the H&H. What are your experiences with the improved versions, and would you do it again? I'd do it again, if only because when I tell someone I've got a .375 H&H Ackley Improved, it generally elicits a bunch of ooohs and aaahs.