"The basics of this system are simple. There are only a few people who are associated with the horse in question and they are the ones who really know how well it is going. They know how fit it is going to be on race day, if the horse has been set for a race, right distance, track, jockey and so on".

Load of old tosh.
A lot of trainers, jockeys etc don't know how well or conversely how bad their horse is going.