Yes, that approach can yield some nice overs.

I used to target the Best Bets Top 5 selections & look for runners with negative comments & it was amazing how many would get up to win at juicy prices.

I would target races with 12+ runners because these where the races that offered the most surprise upset wins.

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Here is a Lay approach that has shown to work.

RULES
Target the horse that appears on the front cover of the Sportsman.

Lay not to win if $2.25+

That's it.

You may have already noticed , that they hardly ever seem to win if they are Priced $2.25+

They are usually hyped up to Billieo & manage to fall in a hole - Funny that.

One could Dutch the field leaving that one out & some rough heads ,
to make good profit.

They often get up to win within their next 5 starts but not today .

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Cheers.