I have started this thread due to the recent discussion raised by Dale regarding Pre-Post Favourites. With the latest Bet Selctor update I have been able to do some testing back to December 2011. In addition to the system I posted under the Rock Hard thread, here is another.

Rules:

-must be Pre-Post favourite (determined by AAP)
-must be NSWTAB favourite at race start
-must be top Handicapper rating (equal top is ok)
-must be a last start favourite
-age 3-5
-allotted weight <59kg (not including claims)

Results from test period Dec 2011 - Mar 2012:

135 selections
72 winners
53% S/R
185 unit return
50 unit profit
37% POT

When combined with the Rock Hard system:

193 selections
101 winners
52% S/R
268 unit return
75 unit profit
38% POT

Only 4 months of data to test with but with only a few simple rules it could be an effective long term system. I'll run a check on selections for April so far and post up the results.