Meh. Didn't fell like a huge improvement from my previous settings. I'm using a G29. The wheel now feels dead when driving on a straight line, theres no feedback whatsoever from the road bumps, and theres no resistance to turn the wheel when the car is stopped. Also it feels extremely light when driving racecars, which I don't like. It was easier to tell where was the threshold of grip on road cars. But I preferred my old settings so I'll revert back.
Occasionally I went back to without a LUT and indeed, massive difference although it's really just a little curve for the few first percent of ffb output!
I wish you great fun with AC!