Brother Derek Breeding / extremely interesting charts

[BeatTheChalk]

Has Mr Prospector on the top AND THE BOTTOM !! What to do ? My friend
says that the horse is just fine ... The only horses that are SUSPECT.. are
the ones..with Mr Prospector on the Dam side only ( with no Prospector
on the Male side )

[JPinMaryland]

You know what I dont get about pedigree/dosage people? THey cant tell you which of these yearlings is going to get to the track and which wont. They cant tell you which of these two year olds might do best that season. They cant tell you which of these two year olds might develop into a 3 year old...

So after the field of colts has been narrowed down from some 20,000 colts to 20, THEN they can tell you will win on derby day!

HOw is that possible?