
But that attitude leadsto the popular sire syndrome that depeletes the gene pool. An older dog that has proven to be healthy and has desirable traits should be used. This wil broaden the gene pool, and you never know he may be a better producer than the proven dogs :D You should of course take his ancestords into account also, and those of the bitch.
My own bitch was the first real winner from her sires fourth litter. Had she not been shown, he may not have been used again, even though he was top dog in our breed. He is now 8 years old, and has a good winning Junior son, and some more offspring on the way.
Whether a dog becomes a useful stud is so often a matter of luck, as if his best offspring are not shown, or worse a not very good example is shown then he is overlooked. In this case I looked at the Dog and the Bitch and they were a good match with complementing characteristics, and strengths where the other failed slightly. I was lucky and the bitch I show is a real blending of her parents.
One should if at all possible consider as many good suitable dogs as possible, not just the Fashionable or top winning studs. sometiimes the dog consistently in the cards, but not the stand out will make the better match.
The order that one would rate dogs in the ring is not necesariuly the same as how one would rate potential studs when faced with finding a partner for a particular bitch.