I have a Logitech G27 steering wheel. In other simulators (Assetto Corsa, ACC) it is possible to apply the LUT technique, applying the corrected LUT torque curve: to the real curve: we get a linear relationship and without "Dead zone: RF2 has no LUT support (if I understand correctly...). Instead it is suggested to use parameter "Minimum steering torque" to remove "Dead zone". My guess is that this adds a fixed FFB to the entire steering range as a picture: And we don't get what we're hoping for... we get "a curve like this." What are your thoughts on this ?
G27 is weak and old, this little camel back is nothing you can probably feel in a blind test, while you can feel the enormous dead zone it has in the low range. I think minimum torque change the ramp angle and not translate it higher. In other word 100% is unaffected.
In rF2 the Minimum torque is what seems to say the name. You'll never have in the wheel less than that torque. If the torque of the physics is smaller than the configured, the torque of the wheel will be the configured in the parameter. If the torque of the physics is bigger than the configured, the torque of the wheel will be the torque of the physics.
Is the graph centered at the calibration screen? That posted graph resembles your slider set to slightly higher than dead center