i use the following measure which to the expert probably means nothing.

i use only listed horses in my selections.
i use a weight/margin calculation.

i add the barrier plus the calculation together and if the price is greater then i consider the horse value.

it works well as many horses at short odds have a lot against them when using this measure.
it also cuts down a lot on the betting. the downside is that you need to have the available price to make a decision to back horses.
members of the forum will say that a horse drawn barrier 12 needs 12/1 .
oh well thems the breaks.

__________________
laurie