So far I have been looking at:

1st Favourites only
backing 3, 4, 5 favs
backing 3rd favourite at the same time prior to each race (5mins) - 1st 6 races of the day only
1st Fav Race 1's only
top 5 morning odds for the day only
1st runner at 10/1
Rosehill Barrier 1
Radio and Tipster matching 1st fav

plus published systems such as:
Sports Betting Shark
Natural Selections
Zipform

and a few others

So what some of you are saying is to forget the market odds and the morning paper odds as most of that is derived by the market and they are in fact losing on a daily basis?

What should I be better off looking at?