As noted, most major Australian feedlots provide carcass data feedback ONLY to individual feeder suppliers, and there is no national or breed society database. ‘Own-herd’ data nonetheless represents the most valuable single evaluation tool for an Australian Fullblood producer targeting profitable Fullblood Wagyu production. Trait consistency reinforcement is a foundation of Japanese Black breeding, and most progeny results are highly repeatable. Identifying and repeating proven combinations, then selecting new generations of breeders based on superior carcass data, is a replication of traditional Japanese practice.