Mario Petrinovic:
> Well, the discovery of calibration problem sped things up. Now I am
> having consistant results. I found out that Centering Spring should be as
> a result of multiplication of Overall and Spring/Dapmer (if those two are
> equal). So, for example, these settings are balanced: 125/80/80/100,
> 80/125/125/100, 125/100/100/125, 100/125/125/125. Centering Spring is the
> key of FFB, if you have this right, the rest is easy.
> So, it looks like I am almost done. Only have to decide which one
> is "the right", 105/100/100/105, or 105/105/105/110. The first one feels
> just right, only it is a bit skiddy (maybe because of latency). The second
> one is like safer to drive. I'll see, have to test it on different cars,
> and put it through some tricky situations, and to see which one is faster,
> didn't have time to do that today.
> Ah, life is beautiful, : ).

Ok, the story.
It all revolves around Centering Spring (CS). It should be at 100%.
If it is less than that, it is too "free", if it is more than that, it is
too tight. You can have it at 1% less (99%) to "free" setting a bit, or at
1% more (101%) to have more "bite", but I wouldn't move for more than 1%.
100% should be "the neutral" position.
Damper (D) and Spring (S) should be the same. Multiplying Overall
(O) and D/S should give you the value of CS. This means that one can choose
settings from 150/67/67/100 all the way to 67/150/150/100. Overall 150% is
very strong, but it has no slack. Diminishing Overall and adding S and D
will produce slack (probably D is responsible for this). Wheel is most
sensitive at setting O=150 (even too much sensitive), and much less
sensitive at O=67. If you start with O=150 slack starts somewhere at 135,
and Damper is felt at 125 and belov, giving more and more slack and damping.
You can be fast with settings around 105% (with slack), and here it is where
the strength is OK. But maybe it is better to use 135% or something (the
sweet spot, regarding sensitivity), and diminish strength in sim. I was very
fast with 136% or something.