Getting some good vibrations from this Barny. I think similar ideas have been put forwards before...anyway... wouldn't it be nice, but God only knows. Hope I'm not just a daydream believer.

Ooops, sorry wrong band, 'bout time to get on the last train to Clarksville

Stop monkeeing around

Now we're getting back to that untrained monkey thread.

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Careful its not Urang "UTANG" it means debt in Filipino

I remember that Mark posted a thread some years ago re firmers on opening prices.
I am thinking off the cuff here and out loud. This is to encourage some positive debate here. If the prepost market in one form or another produces an 80% plus strike rate in the top 5 (it seems that it does not matter which source so long as it is consistent) and the tote produces a similar result in the top 5 favorites, (not necessarily the same horses) and the winner is usually (noticibly better than 50%) then in a rudimentry form we could do the following. Take the top 5 prepost and back them at the best prices that we can get. Then lay those same 5 (or the top fav on tote) at the starting price.
Where it counts the price should be shorter. Swings and roundabouts over time it should be in the positive.

beton, I'd never taken any notice of pre-post for many logical reasons. But the facts suggest that pre-post odds are an excellent filter. All the logical reasons you could put forward to discount using pre-post prices can be defeated with data suggesting otherwise.

There are arguments about the office boy doing the odds ..... there are arguments suggesting the papers generate their odds using data in a computer ..... there are arguments to suggest that the Pre-post odds are at 140%, and are bound to shorten when the market runs at 115% .....

Pre-post between $4 and $10, if they open shorter, is worthy of keeping data.

Just 2 cents worth, as I've studied PP prices over a number of years, my conclusion (like others) is its not so much case of PRICE accuracy, but it is a very strong indicator of the likely winner!