I asked about data bank this fall. The answer I got is that he was ok on maternal bred hfrs but not clubby bred ones. I really like the bull and his progeny but will wait til to use him on 2nd calvers. I err on the side of caution with hfrs. Jmo
That would be up to you. Bismark semen is harder to find. $50-100 for conventional, $250ish for female semen. Brilliance is $25 conventional, $50 for hfr and readily available thru ABS
Bismark is a little easier fleshing than unbelievable. Unbelievable will add more muscle however. Imo, bismark is the better bull to make lower maintenance, eye appealing cattle. Bismarks females are very sought after. That's my $0.02 worth.
I dont have any experience with this bull. Just shared the link to his semen for sale. Hopefully someone will chime in with first hand experience <beer>