One thing my research has shown, is the Favs with a 1pt+ difference to the 2nd Fav shows a 30% SR .

One will experience times where one will have to let 6-8 races go before a bet qualifies, this is where the discepline comes into it.

Go to a site called Adrian Massey (Google)
There you will find a FREE comprhensive seach program that can interogate things like Favs , 2nd favs ect including price ranges. ect.
It's a UK site but the basic stats will be the same as for Aust.

Cheers.

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Cheers.