I've lurked and listened to hours of audio over the years. This clip sends a real chill down my spine.
Question for experienced pilots: is 4125's read back even moderately intelligible to you? I understand that the sound quality we are getting on these recordings is often nothing like what the tower would get, but the quality of this clip doesn't seem to be an issue to my ears. Everything except '4125' is slurred. It's as if he's too cool to bother enunciating, kinda like "uh-huh, hold short, whatever