I bumped up the Graphic setting to a 5 value, and I am getting huge G27 benefits In steering wheel response??? I'm I nuts to think so???? 4 is ultra, there is no 5 . But I always try stuff out just for fun....
It may be you exceeded a parameter so that value was just ignored. Might want to test the change to zero or 1.(whatever the minimum value is) and see if you get the same results.