Quite a few years back, when the chief stud I was following was the Ballymacoll Stud, I was very critical of their handling of their best broodmare Hellenic: best because she produced 3 Group 1 winners, including the champion filly Islington. My criticism centred on the stallions they sent to Hellenic during her career at the stud. She was a fairly productive broodmare as she produced 14 live foals (even though she was barren or her foal slipped in the last 3 years at stud). I could not believe that she was only ever sent to Northern Dancer line stallions and found it unthinkable that she was sent to Sadler's Wells a dozen times and produced 9 sons and daughters by him.
What's wrong with that you might ask? Wasn't Sadler's Wells the pre-eminent sire during most of her time at stud? Well yes he was but that's even more reason not to so concentrate on him. Ballymacoll was an owner-breeder. If they'd been a commercial breeder who sold all or most of their foals it could make commercial sense to use the best sire available. But even then it could be short-sighted. As they were owner-breeders the policy bordered on blindness.
If you are an owner breeder then you must think about the future of the families you are finding to be successful in your stud. You need good daughters from good mares to carry on that line. The supreme example of an owner breeder who gets it right is/was the Aga Khan. When you look at the pedigrees of his successful horses you find surprising stallions in their pedigrees (on the dam's side). Sure he used plenty of really top sires but he used plenty of others too.
If you have a top mare like Hellenic and you send it to Sadler's Wells all the time, then any of those daughters by him cannot be sent to Sadler's Wells, more importantly to any of his sons (Galileo) and perhaps his grandsons (Frankel and even Teofilo): and what sires those sons and grandsons turned out to be! To use a Bridge term you've blocked the suit. You've blocked yourself from using the family with the best Sire line around. Not forever but for a few generations at least, and that's damaging to an owner-breeder. So the name of Hellenic and especially her Sadler's Wells daughters have not been seen in the pedigrees of top class horses.
What prompted this post was the victory of Waardah in the the Group 2 Lillie Langtry Stakes yesterday. Her 4th dam is Hellenic but the 3rd dam is not by Sadler's Wells but by Green Desert and called Desert Beauty. The second dam is Red Dune by Red Ransom (by Roberto) and when sent to a son of Galileo she produced a filly called Neesan and the extremely promising Waardah is her second foal by the Dubawi sire Postponed. Look at the pedigree of Waardah and there are no duplications in the first four generations. The only duplication in the 5th generation is to Mr Prospector, so no multiple lines of Northern Dancer as there often is. Why didn't Ballymacoll use Green Desert more than once, why didn't they send Hellenic to Red Ransom (they sent her daughter) and why not send Hellenic to Rainbow's Quest for example.
I have my theory but answers on a postcard.