Agreed, you don't have to go back to Schearbrook Shoshone to get milk, but AT THAT TIME he was the No. 1 milk bull in the Angus breed.
Personally, I don't like high milk EPD bulls either. In our country, TOO MUCH MILK can cause you problems, like rebreeding. It costs a lot to maintain a superior milking cow. We haven't selected for milk, EVER and we have plenty of milk in our cows. They are good uddered cows and the calves will gain 3 lb./day on average on their mothers during the summer. That means the cow is milking really good, maybe a little too good. So you get a 1500# cow, whether she is a frame score 5 or 6 or 7, and if she milks too good, she probably eats a lot; winter and summer.
Balance and moderation is the name of the game, IMHO! And don't forget dispositon. That is one of the most important traits for us. We just can't have wild cattle on our ma and pa operation. LOL!!
As far as high numbers go, those bulls with extreme EPD's will not breed back to themselves, but instead will breed to average of that line of cattle. Outliers are just that.
We try to watch cow families and choose bulls from good cow families. We pick the bull more from the cow than we do the sire. Weird, aren't we? But we do have an awfully nice set of Angus cows and we haven't paid real high prices for bulls, ever. So it is working for us, so far. We could stub our toe, though. We select for maternal and not growth, yet our calves have plentry of 'grow' as the same feeder buys them every year.
It is kind of like walking a tightrope and bloodlines are like vehicles. People like and look for different things.