Jason as Calvin said each track to their own.

Having never been to Windsor do you race there at night?

From what Calvin said about it being a tight track and if it is at night more toe in the rear will help keep the heat in the tires.
At Boronia at night I run 2 degree rear toe, this track is also tight. I can get it to work with zero but must run softer rear tire.
The problem I found with to much toe is that when the track has good temp in it you tend to overheat the tires mid race, this can be confusing to some as you feel you need a softer rear or more rear grip when you actually just need a harder tire.
Loose in the first 2 laps is good as this is hopefully before the race starts.

The other thing that I have found with the wandering is, to hard shock oil in the front makes the car to aggresive in initial steering so you are always correcting the steering.
This feels like the car is wandering when most times it is just to responsive to steering input.

Try more toe out on the front and a softer front shock oil.