I'm looking at this "middle-of the-road" method. I've only tested it for two days with a profit on each day. I'm laying all selections for $33 SP.

Cessnock
2/9
3/6,14
4/3,6,7,8,9
5/4,7,13
6/8,9,12,13
7/7
8/5,7,9,10

Terang
1/1
2/6
3/5
4/6,13
5/2,6
7/4,5,6,7
8/1,6,9