The only REAL uma guide you need start reading toreina.
>"The Thoroughbred exists because its selection has depended, not on experts, technicians or zoologists, but on a piece of wood: the winning post of the Epsom Derby. If you base your criteria on anything else, you will get something else, not the Thoroughbred".
>"A horse gallops with his lungs, perseveres with his heart, and wins with his character".
>"A true champion is a horse that wins under any conditions, in any environment."
>“In the pedigree of a stayer of classic quality you will always find the name of a horse that was a good sprinter.”
>"Never remain attached to your female lines Mating mares is all about constant experimentation"