Here is some amazing footage from Emmanuel's private collection of Hearn's and McCallum sparring about 83 or so ... http://www.thesweetscience.com/news...tScienceNews+(Sweet+Science+Boxing+Headlines)
It is good footage. Doesn't show much, but it does demonstrate how the fight would sort of go. I always thought it would be a technical fight, not a great action fight. Tommy would do well if it were the Hearns at 154 from 1982-1985.
http://www.youtube.com/watch?v=HgQCv9VqEC8 http://www.youtube.com/watch?v=xGCm88z3RJg Hearns and Breland, sparring.