McMurphy's rebellion tactics, by which he tries to make gambling, girls, sport on television, basketball and self-respect part of the cowed, neurotic inmates' restricted existence, are still thrilling and chilling to witness.
Slater wages this liberation battle against the forces of darkness with too little emotional commitment and too much waving of hands.
The production by Terry Johnson and Tamara Harvey allows the ward inmates - Owen O'Neill's Harding excepted - to lapse into the reductive simplicity of caricature.
The awful closing scene, though, is quite unforgettable. Barber's Ratched, hoarse with fury, goads McMurphy to the violence he has long suppressed.
When he returns, lobotomised and still unconscious, to the ward, Barber presses her hand on his brow and on his midriff in a gesture at once compassionate, erotic and victorious. A flight to this Cuckoo's Nest is still worth taking.