Two recent feedlot surveys on more than 86,000 head suggest that the Angus breed has developed to a point where there may not be any benefit from cross breeding in some situations.
The feedlot surveys found that the more Angus genetics an animal has the higher its ADG will be and the less days on feed it will need. Angus genetics also performed the best in regards to carcase quality. This corresponds with data from the USDA Meat Animal Research Centre that says the Angus breed has caught up to many of the traditionally high growth rate European breeds. This is a direct result of Angus breeders using tools & research to put a lot of selection pressure on traits such as yearling weight over the last decade.