Can someone explain why bricks would help? Brake IMBALANCE? 
I can help here
It's not for imbalance, its to get a higher brake reading if thy lock up too early, the heavier it is, the less likely it is to lock up 
thus missing the point totally.
only the fronts have a % imbalance allowance at the moment.
however, they are bringing it in for the rears too.
Load away, if you have an imbalance it wont help at all
