there are two angus bulls, tender ten, the other class reunion from ultimate genetics. any thoughts on using these types of bulls on heifers, and can the offspring be registered at some % in the maine breed without the certificate. I realize these genes and phenotypes don't matter for club calves, but it's a fast way to stack genes as there are very few of these types of backgrounds in the maine breed. a couple of obvious sources in the maine breed. what are thoughts in general on breeding up from maintainers to snag these genes?