I remember the Mark Smith game. Minnesota played a matchup zone. Henson put Smith at the high post and he just carved them up. It's probably still the best execution against a zone defense I've seen over an entire game.
Also, it's tough comparing assist records historically. It wasn't an official stat in college until the 83-84 season, and statisticians have become more liberal about crediting them over time. Still a great performance by Ayo.