More pics up here
http://www.sdpics.com/cgi-bin/e-store/index.cgi?direct=8000~Motor_Sport/9000~Cars/05~Car_Club_Track_Days/92~21_July_2012_-_WRX_Car_Club
That sound equipment was just f**ked, plan and simple. Sandown has to be one of the most heavily enforced tracks in the country for sound. If a car passes there, it should pass everywhere.
At the end of the day, if you have a screamer venting, Winton, Calder, Haunted Hills and PIARC are your only options for good value (more than 2 sessions).
The oil sucked, as it used a mass amount of perfect track conditions. But you can't do anything about knobs.