the default FFB for my DFGT is pretty lifeless, it's either strong or weak and no feeling for understeer. You really need to fiddle with those ini-settings (but which shouldn't be so in 2014 sims) to get a bit life to this wheel and feels atleast 4 me a lot better now with these settings below
FFB Gain="0.95" // Strength of Force Feedback effects. Range 0.0 to 1.0.
FFB Throttle FX on steer axis="1" // 0 = Throttle effects on throttle axis, 1 = throttle effects on steering axis.
FFB Brake FX on steer axis="1" // 0 = Brake effects on brake axis, 1 = brake effects on steering axis.
FFB steer vibe freq mult="1.0" // Controls frequency of steering vibration. Recommended: 0.5 to 1.0, 0.0 disables steering vibration.
FFB steer vibe zero magnitude="0.0" // Magnitude of steering vibration at 0mph (reference point).
FFB steer vibe slope="0.0" // Slope of line defining magnitude as a function of frequency (used with FFB steer vibe zero magnitude).
FFB steer vibe wave type="0" // Type of wave to use for vibe: 0=Sine, 1=Square, 2=Triangle, 3=Sawtooth up, 4=Sawtooth down.
FFB steer force average weight="1.0" // How much weight is given to new steering force calculations each frame (0.01 - 1.0). Lower values will smooth out the steering force, but will also add latency.
FFB steer force exponent="1.0" // Steering force output "sensitivity". Range 0.0 to infinity. 0.0 to 1.0 = higher sensitivity, greater than 1.0 = lower sensitivity.
FFB steer force input max="-11500.0" // Recommended: 11500 (-11500 if controller pulls in the wrong direction).
FFB steer force output max="1.2" // Maximum force output of steering force, recommendation 0.8 to 2.0
FFB steer force grip weight="0.8" // Range 0.0 to 1.0, recommended: 0.4 to 0.9. How much weight is given to tire grip when calculating steering force.
FFB steer force front grip exponent="8.0" // Range 0.0 to infinity, recommended: around 1.0. Exponent applied to grip weight.
FFB steer force rear grip exponent="2.0" // Range 0.0 to infinity, recommended: around 1.0. Exponent applied to rear grip loss weight.
FFB steer update thresh="0.0015" // Amount of change required to update steer force/vibe (0.0 - 1.0). Lower values = steering force updated more frequently = lower frame rate.
FFB steer friction coefficient="0.2" // Coefficient to use for steering friction. Range: -1.0 to 1.0
FFB steer friction saturation="0.2" // Saturation value to use for steering friction. Range: 0 - 1.0
FFB steer damper coefficient="0.2" // Coefficient to use for steering damper. Range: -1.0 to 1.0
FFB steer damper saturation="0.0" // Saturation value to use for steering damper. Range: 0 - 1.0
FFB steer force balance mode="0" // Mode for how to add the steering forces together (lateral, load and diff). Acceptable values: 0 = lat + load + diff, 1 = sqrt(lat^2 + load^2 + diff^2), 2 = sqrt(lat^2 + load^2) + diff, 3 = sqrt(lat^2 + (load + diff)^2), 4 = sqrt((lat + load)^2 + diff^2)
FFB steer load multiplier="1.85" // Multiplier for vertical load on front tires. Range: 0 - infinity
FFB steer lateral multiplier="1.1" // Multiplier for lateral forces. Range: 0 - infinity
FFB steer rack factor="0.55" // How much of the lateral forces comes from steering rack. Range: 0 - 1.0