In regards to how do you balance your brakes??
The proper way to balance your brakes without sensors is to use Brake Paint.
The brake paint comes in different temperatures, so you sand the edge of the rotor down and paint a H pattern on the rotor. Starting at the top with 1200*degree paint then next to the 1200*degree paint, you paint another H pattern on the rotor that is 1100*degrees and you do the same for 1000* and 900*degrees.
When you come off the track, then you put the car up in the air and remove the wheels and rotate the rotor so the 1200* paint is up at the top and then you can see how much heat got into the rotor as the lower degrees will be burnt off and the 1200*degree will be left on the rotor....
Most of the time our rotors ran between 1200*degrees on the front and 1100*degree in the rear. on a track that didn't have the demand for brakes as others ... the temps would drop down to 1100*degrees Front & 1000* Rear.
And yes sometimes we used rear bias to help the turn in on the front of the car.
Hope that helps