Hi Keryn
You know I only correct people when they are wrong .....
The lanes at Werribee and the lanes at Campbelltown are different, C'town is more roomier / more air flow / cooler on the lanes etc
Unfortunately there are some patterns that suit oiling machines and lane composition better than others
Over the years we have tweeked patterns to make them harder / more oil in different areas to suit carry down, back ends etc. This is no longer permitted. (I hope this sounds like I actually know something !!!)
There are some good reasons for having TBA set the patterns - don't know if that will work.
I just know the old - 'the cream will always come to the top' - is just as true today as it always has been.
Leanne