One of my heifer suppliers uses half brothers or better-got a 100 heifers from him that were all out of 1/2 and 3/4 borothers. I hardly just show up on sale day-tooo funny-my last bull I bought involved going through the herd with him and selecting the cows I'd like him to use the bull on. Like I said I don't buy many bulls-use alot of A'I and raise my own cleanup bulls. Most bulls we buy we end up owwning an interest in with the breeder. The E.T. work I'm talking about is to raise F1 replacement females-the cow we want to flush is pefectly sound at 14,easy fleshing, her daughters are some of our top carcass producing cows-her sons have all been sold as bulls or used ourselves.