Changing Force-feedback on Wheel

[Cage]

Thanks for that, but Im still a little confused:

with commands such as 'addForce' and 'setForce', they indicate that they will change the "force vector".

Do you know if there is a way that you can relate this to the sliders on the Windows' control panel? e.g is a vector 0f 0.8, 80% of the slider or something? Or is the only way to work out how much force is being applied like this just trial and error?

Thanks.