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On our side of the globe we don’t engage much to brilliancy; South America’s breeding lines and its racing. However we should take note. US, & European with theirs, the international bloodlines.
The focus & advancement of a robust competitive, powerful stayer type is traditional set.
Their generations reflect, built from classic true – individuals around Tesio’s era aka Tracery, Rocksand, Fairway, Donatello.
The Breeding thrusts strict selectivity principles: soundness, merit, development, cultivated on lands rich minerals.
Our TBL subject: – an entire horse that takes his racing campaign with guts of a war-horse is George Washington (BRZ) – recent winner, 2021 GP Brazil, 2400m. Also honoured as Brazil’s leading 3yo colt 2018-19 8 wins of 28 starts.
Pedigree here George Washington by Redattore(BRZ) from Princess Carina (BRZ) by Know Heights (IRE)
@ genotype George is the outcross bred.
This alike & as was, the breeding advisory of German-born USA bloodstock agent John Aiscan whom being also an apprentice of Tesio when a young man. – (ref. Upgrading Thoroughbred Families by Jack Glencarry 1995).
The article by John Aiscan does not mince words for Tesio not only master, but wise teacher.
To come down thru grand-dam genetics dagger… Heavenly Dancer (BRZ) the 3 female dosages Planetaria by Penny Post (ARG) an enormous genetic Argentinian influence . Penny Post pedigree here
Penny Post the Rock Sand/Tracery male line – the 9x St Angela dam of St Simon – distaff thru to Musket and 3×4 Melbourne. No wonder he was genetic-gold entire!
Penny Post’s daughter Planetaria – f.f. 3O dam of El Centauro (ARG) (n.b. stood in Japan ’74 – 1981), a mare of old-gold.
George’s sire Redattore (BRZ) also the outcross of female family 1-x, the famed Striking family by War Admiral.
Redattore past away May 2021 but left his …… G1 champion miler Kapo di Tutti, G1 performers Olimpo (2000m), Editore, Tizon g1 winner in Uruguay, Real Secret, mare Zara (1600 – 1800m)
Indeed compelling to learn of another genetic giant like Argentinian bred, Penny Post. Not only supremacy for his Integrity lasting….. 
Penny Post (credit below)
most influential names in pedigrees have a very powerful linebreeding content themselves – super prepotent sires & dams
Upgrading Thoroughbred Families – Jack Glengarry
The Thoroughbred Link 