Another rule to consider when creating a system to sell for thousands of dollars. This one has actually been proven and works most of the time:

If a horse is first past the post, give it 10 points (the theory is that horses first past the post are usually the winner).

Then retrofit every other rule in your system to suit this horse.

On the subject of top jockeys, how good is this kid from Tassie, Craig Newitt. Every gram of his 3kg claim is a bonus. He's ridden some great winners at long odds since he landed here, including another double on Wednesday. One to watch.