These are the most realistic settings you can find according to his experience of IL2.

Captain Eric Brown's Settings:
Pitch 0, 1, 3, 7, 9, 14, 18, 23, 27, 33
Roll 0, 0, 1, 2, 3, 4, 6, 10, 12, 17
Yaw 0, 0, 1, 2, 5, 6, 8, 11, 14, 16

Direct copy and pate into conf ini
X=0 1 3 7 9 14 18 23 27 33
Y=0 0 1 2 3 4 6 10 12 17
Z=0 0 1 2 5 6 8 11 14 16 


Oleg Maddox:
Roll: 1 3 6 12 21 32 44 61 81 100
Pitch: 1 4 8 15 24 33 44 60 77 100
Yaw: 0 10 19 32 43 54 63 74 86 100