hi sportz, the unitab ratings are a good guide as u say and here is one that i have found seems to produce a place strike rate of over 50 % and ave divi around $2.50.
it also gets some good price winners but dont have stats on winners.
look at 3rd and 4th raters take the longest price of the two on unitab just prior to jump time providing it is$5.00+for the win.
if there are 2 on the same rating that counts as one.
i use it only on saturday but it may well work on other days as well.