simme
Old Dumb Guy
I am thinking that maybe the inertia/pendulum type only applies the brakes if the truck is moving and decelerating and does not apply them if you are stopped and just pressing the brake pedal. For sure the time delay type keeps the brakes energized when you are stopped with the pedal pushed. Does the inertia type keep the brakes energized after the truck stops? I don't think I have noticed if it does or not.