I met him in the 1980s. I asked him about a session reported in T&FN many years earlier. He advised the session was nowhere near as hot as that which I had spoken to him of. But he said he did run 4x5x60 in 6.8-7.0sec. Sorry I can’t remember any of the details such as recoveries but from watching him train that day he didn’t hang around between reps. He wore a t-shirt with some kind of slogan in referrence to Mind Power, something like that. He is a good guy. He also ran 4x400 (sub 45sec split) for Italy at the Olympics (LA 84?).