During RFTH, I pump my brakes rapidly to warn vehicles behind that we're approaching a very sharp curve. Though I can stop efficiently with the 87, I sometimes let off once and reapply the brakes to get a better pedal because I failed to properly adjust my calipers when I installed new pads on the rear.
When I lived in snow country, before ABS and FWD cars became the norm, I had tried pumping, but it wasn't that effective. I eventually realized that with an automatic, the rear wheels are still pushing the car while the front wheels lock up and slide on the ice or snow. It can be frightening when coming to a stop sign or light. I found that by placing the vehicle into Neutral allowed all 4 wheels to brake without sliding.