I just did some more testing with the LUT and FFB settings. It seems tyre model V10 makes the differences a lot easier to discern (or I'm just getting better at AC and getting more used to the physics lol).
All testing done using G25 in McLaren P1 at Silverstone International (my control combo for all testing procedures).
Variables (test only 1 at a time, all others left default in brackets): LUT (stock FFB), Min Force (0%), Logitech profiler 100%.
IMO, LUT makes center forces stronger, but you lose A LOT of forces to the sides. My laptimes are actually slower because of this.
There's another post processing FFB filter called Gamma which I didn't try. I'm not even gonna bother testing out something that you don't know changes what. Unless Kunos puts up an explanation somewhere I'm not even gonna touch this. There's too much risk of placebo effect messing up the results.
Minimum Force (from in game settings) at 10% seems like it works ok, but if I increase it to 30% the wheel just rattles in the center even when going straight. And you lose too much of the subtle forces around the center. At 10% this happens less, but it still happens so technically Min Force isn't great either.
Finally, I tried the old rFactor trick of setting wheel FFB to 107% from the Logitech profiler. In theory, this is supposed to make Logitech wheels linear. Well surprise surprise, this option works great! It makes center forces stronger (like LUT), without sacrificing lateral forces (unlike LUT). You can also still feel the subtle forces around the center (unlike Min Force). Honestly, this is the perfect setup for me. It also has the added bonus of not having to switch from 107% to 100% when switching from Automobilista to AC
If you are also using a Logitech G wheel give this a try. I don't know if this will work for TM wheels too, but there's no harm in trying.
