After rereading that subject line, I DON'T advocate banging 727s, it sounds very much unsafe.
NO airplane will LAND without all of it's engines running, unless that engine has experience malfunction or uncontained failure. IT's dangerous, they might need that engine for thrust reverser in case brakes don't perform... as expected.
I don't mean to argue, but this is MY experience. I have NEVER been aware of taxiing in an airplane without all engines spooled up fully. Not once. Back when I was little, I wouldn't have known, but I certainly would now... I think it's a good idea in order to save fuel. Well, now that I consider props, yes the SAABs I was on (American Eagle) did taxi with one prop spinning, but not any of the JET powered aircraft.
By the way, 727 engines bang ALL the time. Especially the number two engine. It's a problem with airflow. That engine frequently starves, bangs (kinda like a backfire in a car but not exactly) and roars back up like normal. Pratt and Whitney JT8D's are nearly indestructible. They deal with this banging, whereas if it happened to a newer 737, the computer would shut down the engine and display "you're screwed" on any one of six LCD displays in the ultra modern cockpit.
But, 737 engines don't do that, it's a 727 thing.