I knew you were slow thomass, but this is ridiculous. Read what curious wrote and try and understand it.
As for whether VM performed better than before, that is subjective. Hayes opinion may be he did, my opinion is that he didn't. End of story. If Hayes thinks a horse needs blinkers, he should put them on.
There is no means of knowing to what degree the trainer thinks they will help, if at all. You just assume they help. But as can be proven, they generally don't.
Are you suggesting that every time Hayes puts blinkers on, the horse improves? That certainly seems to be what you are saying. Why else would he put them on.
Shall we put up the stats on all these top horsemen/trainers regarding blinkers on. Should make interesting reading.