Mario Petrinovic:
> Eureka, I finaly found the Holy Grail of FFB, : ).
> The problem with FFB forces is slack. I found the way to balance
> that slack. It's done with the Overall slider. On my system the slider
> should be at 138%.
> This way everything works as intended. I tried this with different
> Spring/Damper/Centering Spring combinations, an it works with all of them,
> even with 0/0/0, or with 0/0/100.
> Of course, you'll drive car the best if FOV is natural.

Ok, that was wrong, : ).
I found out what was wrong with my FFB. I kept sensitivity of axes
in Logitech profiler at the default value of 50%, while it actually has to
be at 100%. This was what messed up my FFB.