Hi all something i have always watched with interest is pre post prices that double or triple by jump time,i don't have anything concrete on them but have noted that horses at $7 to say $15 pre post flucuate the most and if your looking for the big overlays then concentrate on these horses.
Anything under $7 seems to stay the same or shorten and anything over $15 pre post is not worth betting on in the first place.