Hi Dingoboy,
Good to here that you are getting a strong result.
Those results of yours are excellent.

With place betting ,the betting pools have to at reasonable size if one where betting in say min $300.
If you were say, betting on dog or trot races ,you would end up making the div pay $1.00-1.10 every time. Because the pools are only a few thousand dollar.
With horses they are 10 or more times larger.

You will notice that weekend pools are larger than mid-week.

To answer your question, its a matter of suck it & see depending on the size of the pools you find yourselfe betting into.

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Cheers.