iRacing.com Motorsport Simulations check it out
\"Steve Myers\" said:Controls
Brake calibration has been updated to work well with both pressure-sensitive and deflection-sensitive brakes. There is now an option to control the linearity of the simulator’s brake pressure response to your physical brake pedal travel. Potentiometer-based pedals (most pedals) can adjust this value to suit what feels best for them; lower values give a more linear brake response (more initial brake force with pedal travel than before), while higher values give a more non-linear increase in brake force (less initial brake force, more force near full pedal travel). Linear pressure sensitive pedals (with load cells) should set this value to zero for the most linear true to life feel. A brake force curve factor of 2.0 is close to the brake force curve before this change. This factor is now reset automatically to 1.8 any time the brakes are calibrated—you will need to change it to your preferred value after calibrating the brakes if 1.8 is not to your liking. For most pedals this gives a good feel.
The pedal meters on all screens reflect this change. The throttle meter has also been corrected to match on all screens.
I have to re-calibrate my brake pedal with iRacing every time i launch it, gets a bit tedious after a while
You're thinking of it the wrong way around. The higher the value the harder you have to press it to get the same amount of braking - go ingame and try it. Setting it to 0 is only for load cell pedals, any others you'll need to turn it up in order to get more realistic braking. Even iRacing said that's the way round it works.
From the release notes