As far as breeding and keeping track of bulls, I think we might do it the same as a lot of people. One bull breeds heifers, if he is a new bull, he is realted to none of them and could be used two years there. One bull breeds 2nd calf heifers, you buy him opposite the heifer bull, can use him two years without any related cows or heifers under him. Then they get kicked out into the large pasture, one bull goes out each year and a new one comes in. Bred by comittee. Yes you could be breeding a daughter back, but it isn't something we worry about after that or notice. We keep track of the cows, and if she has been having solid calves and all of the sudden there is a sub-par one, we give her another chance. If all she has produced is sub-par, cya.