Hi, Michaelv.

I am using a system (loosely based on a PPM system and is profitable so far) for Saturday and Wednesday racing where my cut-off price in the pre-post market is $5.50. This has eliminated quite a few losers, so I would agree that your suggestion of the $5.50 price has merit.

And I agree it would be more accurate to use the real prices and not pre-post. Your figures using real prices supports this, as the losers would have been eliminated. But as you say, not many people, including myself, would be in a position to check the real market.

Maybe the last-start-placegetter rule in the normal Unitab System might somewhat reduce the possibility of the selection easing in the betting? In fact, I would not be surprised if all the winners in the system firmed because they have all paid less than their pre-post prices - and some pre-post prices are framed around 150%.