I sort of do something similar at the moment Darky.
Normalise IAS to 95% and bet the overs on Betfair.
However, I have semi abandoned Australian racing for UK racing.
I still watch and have interest bets, but the way I bet suits UK racing better.
For example, flat staking, my POT on UK races last night was 13.87% after commission and on every favourite in every race.
Because I stake percentage of growing bank each day, my POT for the week is 37.87% on favourites.
There is a phenomenon on UK racing that we just don't seem to get here.
All one needs to know, is
when to bet.
P.S. Yes that consistency plan has been going strong for almost 8 years
It works on the UK flat races too.