[QUOTE=Chrome Prince].

Of the horses that beat the favourites, no amount of extra information will make them favourite because the group favourite has obvious credentials to make it favourite.
QUOTE]

That doesn't seem to make sense. Favorites don't have the word 'favorite' tattooed on their rump. They are only fav. because the punter using the form info. at hand, bets them into favoritism. No other reason. Punters now have more info. and [therefore] should be betting more eventual winners into outright favoritism shouldn't they?