I added in code to auto detect the optimal FFB force slider value. Go out and drive a lap or two in your favorite car and watch the F9 black box. At the bottom, where you can set the FFB force an 'auto' button will appear if I determine that your force setting is not optimal, click on that at any time to apply the new value. There is a similar button in the settings dialog that lets you apply it from there.
Ideally you would drive a clean lap with no off tracks or curb strikes, but I have code in place to try and filter out those cases so it should work reasonably well no matter how you drive.
