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

Yeah, the car in question is the Charger.
Drum brakes are easy. The self energizing function means that as they start to grab, they exponentially want to grab more. This feature is great for reducing pedal effort but makes it hard to modulate to avoid lock up and loss of control.
Front disc, rear drum works great but you still run into the risk of rear wheel lock up.
I am experiencing the opposite.
I can try to lock the rear wheels using just the parking brake. I can run the brakes hard and take a thermal gun to the rotors to see if they are hot.
I may take the brake pressure gauge to each corner. I may try to bypass the distribution block by running the lines from the master cylinder directly to the 4 corners.