Greatly appreciated SB, i'll go back through race by race tonight as well and place the race data into my recording spreadsheet.

I'm at a bit of a crossroads as to if I should refine the selection criteria further or leave as is. The reason being is that currently the ratings/overlays approach is having a bet in 1 of every 2 races rated meaning its having quite a lot of action. Is more/less action a good or bad thing? Interested in the comments of others too, I guess its not necessarily a bad thing providing your Max drawdown is at a comfortable level.

I suppose also comes back to the question what are you more comfortable with:

500 selections over a month 30% SR 20% POT or
500 selections over 2 years 30% SR 20% POT

EDIT: Maybe rather than any horse filtering I need to look at any additional race filtering I can use to improve the results as my horse filtering should all be taken care of in the ratings