Pixie, I have found that focusing on the first 3 favourites primarily has been where the majority of the success is in the testing of this idea although there have been some big profits in the higher end of the scale as well.

The key to what makes this idea a success is by using a multiplier applied to the stake based on the overlay, the higher the overlay the higher the stake but I have a buffer built in by laying to liability. I have been testing with a $30 base liability and applying the multiplier to that, the biggest loss has been $146 with the applied multiplier.

I am also looking at a backing system for unders and so far I have found that of the selctions I am looking at (favourites only with a few filters) the most profitable band has been when the price falls to 60% or below the rated price I use. Same type of multiplier used to maximise the returns, so far there has been around 200 selections (since December) for a 45% S/R and 20% POT at TAB prices.

Chrome, I am yet to look at how fluctuations affect these systems but it is something that I will definitely look into.

Cheers,

Mat.