Thanks for the comments RSC. There is a class for pretty much every brahman influenced breed simbrah, santa gertrudis, brangus, brahman, and a american breeds cross class. Classifying is a game and gets interesting lol To show as a brahman the calf has to show a minimum of 50% brahman characteristics, which would be ear size and shape, sheath, prevalent hump and position of the hump to name a few. simbrah is basically classified of whether or not they appear to be american influenced and portray simbrah color patterns. Santa gertrudis has gotten really wild, they have to show brahman characteristics but they can almost be any color. Brangus they are the most strict on with classifying, the steer should look high percentage brangus. and ameican breeds cross is like your AOB for brahman influenced cattle, as long as they have a little sheath and some ear they usually can get in the class.
All of it may sound kinda crazy and it kinda is but it really does keep the quality high, being able to cross them up so much. Just let me know if you have any other questions. Hope this helped lol