In his own words:
Homogeneous in horses' quality.
According to him, focusing on no more than 20 horses and foals prevents management to become cumbersome.
When you've got quality, you don't need 50 horses. You prepare futur with young horses.
For François JACOB, young horses are the foundation of a stable. One takes a horse from the very early stage and brings it to the top.
If not, then there is no continual, and as a result, no perennial.
Horse training is primordial compared to harness at all cost.