Horses are individuals. It is possible for a trainer to discover a horse's "hole card" and improve its ability level. It is next to impossible to do so time and time again overnight. Isn't it "objective evidence" when almost every horse in a large stable improves the same amount at the same time? When most of the horses the trainer gets from other good trainers improve close to this same amount in their first start with him? On Saturday, didn't many of these horses back up roughly the same amount, which wasn't that far off the improvement this trainer routinely gets in their first start in his barn?