done it a time or two on short term cows, knew the owners. came out ok. The year that we had the really high calf prices, my wife bought out a small herd, 2-year-olds to old cows, they calved easy, and calves sold for more the next fall then the cows' cost. Bought 40 head of 2-year-old pairs gate cut, one brand (Was only one brand per cow but brand inspection was for 2 states and 5 different brands). Calving them the next year, a few man killers got culled that fall. Still got most that of that last bunch. Yes, you lose genetics but those you buy if same owner have been under their own genetic plan, but then the right bulls are still half that next calf.