F1 2013 Thrustmaster T150rs wheel/force feedback settings

[Rob McEwan]

Has anyone has any pointers for the ffb settings for the t150rs. There seems to be no difference in wheel weight when I'm at a standstill or cornering at high speed. Also seems no discernable difference to the feel when understeer/over steering.
I have environment effects on 0%
Wheel weight 100% and force feedback on 100%
I haven't spent much time trying to work this out yet. So any help will be much appreciated