Wayne that is a very good question? I have a set of quad 2wide yearling does out of a great doe out of a old line {Marlin}. I have kept them all just to see if they will produce like thier mother. I know of a lot of farmers that would have sold some of the does because they have four. But there are cases where all four daughters produce better than the mother and then the rest of the siblings wind up on somebody elses farm and then they want 3 times what you sold them for to buy them back.. I hope I made the right decision for keeping all four of them. I used a lot of old line in my AI breeding this year.