Although the difference in maneuverability between the -1 and -1D isn't REALLY significant. -1 turns tighter on a horizontal plane, but the -1D is better in the vertical.
I still want a TRUE F4U-1A, which depending on how you look at it, is either an F4U-1 with the paddle prop and greatly improved acceleration/climb, and bubble canopy, or a 1D without the underwing pylons and larger internal fuel capacity.
Where's your performance chart, FD? I'd like to see the one you have for the -1A speed/accel/rate of climb with the -1 and -1D super-imposed.