I have been toying with this idea for awhile now.
A good a place I reckon to start would be those horses listed on the newsletter from this site.
FUTURE WINNERS /UNLUCKY HORSES.
I also had a look at those horses listed on a couple of wt /time rating sites but the strike rate on their top listed horses (those at 15 - 18 points)were so appalling that I lost confidence in their ability to be able to spot anything let alone any type of future winner.
Cheers.
darky.