I don't know if I would breed to a dog out of a "solid litter" over an ace who was the only one worth feeding. for me it comes back to your question, how was the dog bred? does that ace embody everything that was hoped for in that breeding? was it a well caculated breeding that just happened to capture lightening in a bottle and the rest of em just didn't get what he got? sometimes that's how the dice roll. could possibly be different if u repeated the same breeding.