F1 2012 Anyone Use an f458?

[tandy45]

Hey, just wondering if anyone uses a thrustmaster f458 on the Xbox 360?, Been trying to find a decent setup for the wheel that negates much of the understeer but various setting have either caused Stability in a straight line and massive understeer at low speeds or twitchy on a straigh line with shed loads of oversteer in corners. Started using a setup another poster used on the Codemasters forums which had advance settings of;

Advanced steering wheel adjustment
0%
20%
45%
0%
0%
0%

force feedback option
50%
100%
50

Tried this and the car is stable but understeers massively in corners, any help trying to find a sweet spot would be great thank you.