Hi again, check this out, its looks ok.
On the qtab web page, click on a race and at the top left hand corner are tips. I think their Read ratings, but I'm not certain. ( www.tabonline.com.au/2005/07/05/mtgraces.html )
If you take each of these tips with the field in exactas and then the field with those tips for 2nd in exactas for half a unit, you win on a lot of races. today div were very good. I might look into this some more. looks ok.