Members with 4 wheel disc systems: Can you lock your wheels?

You need to use more than the area of the pistons to determine ratios. You need to use a brake torque formula that takes into account the rotor diameter, size and how many pistons, coefficient of friction, etc.

And I know that @72bluNblu is running virtually the same front and rear brakes on his Duster/Demon and far as I know he is nothing but satisfied with the brakes. Which would suggest there is something else going on.