Thanks for the input Beton and Try Try. I will take at these ideas further next week and report back.

I'm also going to check into the suggestion on another thread about the 1st and 2nd favs more likely to win the 1st few races of the day when compared to the last few races. See if that increases or decreases my POT. Stay tuned.

Looks like a lot of action tomorrow. Let the maths roll on!