There truly are bulls that have potentials to throw some some major problems. Some of these bulls can barely walk and they will get some paid announcer to talk them up like they could run a marathon. Your bull is all of your herd profit. By that I mean, he touches each of your calves. So if he has a weakness, and the cow has it too, then you are in trouble. I am at a point on the Angus, go for their feet and legs to the hips. Then see what else goes with that. The old bulls that were here 20 years ago, check those out before all the inbreeding hit when many good lines were done away wth beause of defects, that I never had that problem with any birth. I think a defect out of 1000 calves would have been better than all the bull calves walking with frozen hock joints, and claw formed fetlocks with sloppy hip joints. I know I sound harsh, but I loved my Angus cattle and it has been so difficult to find a bull I trust to last a couple of breeding seasons because of defective rear leg structure. It reminds me of what happened to Collies and the Impressive Quarter Horse line, then Doc Bar.