I believe I'm experiencing the spongy brake pedal. I just replaced the front roots and pads on my '11 Edge Friday afternoon, for pulsing. 56.6k miles on it. Brakes fine now, no pulsing. However, if I continue to press the brake pedal after stopping, it will go to the floor. Sound like the booster? I never noticed this before Friday, but then I never had a reason to stand on the brakes.