Can't help directly but if you look for the bull on the SCBA database, you can find his progeny and contact the breeders / current owners direct.
I did that when we were deciding which AI bull to use - Hengae Fearsome. All his listed progeny are in the same herd and are last year's calves, I think, so it wasn't awfully useful. As it turned out, neither held to Fearsome
but that's how I did the research.
HTH