Automobilista 2 Custom Force Feedback - Overview & Recommendations

Gain start at 50 and see if you want more or less, just avoid clipping.

LFB actually acts as a "compressor" so it slightly boosts weaker forces but also slightly compresses the highest forces.
(AMS2 ffb can have insane peaks going over kerbs, spinning the car or just heavy downforce cars that provide huge signal strength that mutes everything else)

The whole 0 to 100 range of the LFB slider is usable, so it's a lot more about fine adjustment now meaning you can bump it up to 40, 50 etc... and find it quite enjoyable.

FX I usually try to go as low as possible but my wheelbase has 20nm.
Damping depends on how everything else is working, how "dirty" the signal feels, damping is more of a "cleanup" than anything.

I tend to avoid it or use my wheelbase damping sometimes, but I've also tried and seen people using 40 damping in game for example zero on the base, with great results.

If you're under driving because you're correcting "ghost slides" that don't actually really exist and it's just small amounts of tolerable slip angle, or if when your car wants to spin, your wheel wants to "overcorrect too much" then damping can mitigate those things, at the cost of, ofc, dampening the signal making it a tiny bit less detail and a tiny bit slower to react.

AMS2 ffb can change drastically from car to car so in a porsche cup that feels like sliding a bit more you might want some damping while some cars that feel planted but can spin the rear tires quite easily you might want less damping.