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.
80% seems a bit much but as long as it feels good for you, I'm happy that you're having fun :)