That's why I like to loosely line breed cattle and then outcross to a like sire. Keeps them consistent with few surprises. However I'm also the one that will grab that young bull in the AI stud that I think may be special and try him on a variety of cows. And in my mind if he is a good bull he will stamp those calves with a similar trait regardless of the cow. Maybe wrong in some peoples eyes but in some herds you can pick out calves from certain bulls. My chisum calves are among the best here and all have a certain look to the from different cow lines. I think the Bennett Total bull stamps his calves with a look especially the females when they are mature.