Hosnest answer for a poor mechanic:
As I state above concerning Japanese brakes, look at the rear brakes careful, in a caliper, there is a piston equipped with 4 holes on its surface, this piston pushes/pinches your brake pads against the rotor. The piston can move forward but not backward far enough, due a notch of your brake pads that got locked in one of the 4 holes. When the pads worn out, the pads get pushed in further to pinch the rotor causing another terrible friction. This action is called Self-adjust brake system. Should I go further educating you poor mechanic?
If you think you know more why you failed to understand this simple thing?
Last week you said you were impressed with our findings, then you ask me to bring more free ideas to you, No matter what you say now, you can't have our ideas for free you cheap robber.
Good luck to your strategies!