It seems that the minimizing of the torque has resulted in one aircraft (namely the F4U) becoming a popular ride because the low speed stability issues it faced in RL do not hamper it in-game, and yet keeps all of the world-class performance that it was famous for.
IMHO, it has affected gameplay, and Torque should probably be looked at a little more closely, and possibly increased. I'm not for making the planes impossible to fly, but when an F4U out turns the F6f because it doesn't have to worry about stability problems, that seems (to me, at least) to be more than enough evidence to at least take a 2nd look at it.
On pages 602-606 in AHT the author cites a number of tests and pilot appraisals of the major fighter aircraft employed by the U.S. during WW II. The results make interesting reading, and are very pertinent to this topic:
Best All-Around Visibility: P-51D, P-47D-30, F6F-5, F4U-1D
Best Ailerons at 350mph: P-51D, F4U-1D, P-38L, F6F-5
Best Ailerons at 100mph: F6F-5, F4U-1D, P-47D-30, FM-2
Best Elevators: F4U-1D, F6F-5, P-51D, P-47D-30
Best Rudder: F6F-5, F4U-1D, P-38L, P-51D
Nicest All Around Stability: F6F-5, F4U-1D, P-61B, P-47B
Best characteristics 5mph above the Stall: F6F-5, P-61B, P-38L FM-2
In turning performance, using the FM-2 as the base against which all the other fighters were measured, the aircraft performed thusly:
FM-2 (the champ)
P-63
P-61 (Yep...a large twin-engined fighter)
F6F-5
P-51D
P-38L
P-47D
F4U-1D (dead last)
The Corsair had a little over twice the turning circle of the FM-2, or 212% of the FM-2's turning circle. The Hellcat had 138% of the FM-2's turning circle.