sigh...been said so many times but I'll repeat: Your actual raw sac scores do not matter, its only your cohort ranking that gets taken into account by VCAA when distributing your class's EXAM SCORES as your course work grading. Thats what they mean when they say "SAC scores get moderated".
Statistical moderation is a process for adjusting schools’ assessments to the same standard, while maintaining the students’ rank order given by the school.
Because the external score is based on examinations done by all students across the State, it is a common standard against which schools’ assessments can be compared.
http://www.vcaa.vic.edu.au/vce/exams/statisticalmoderation/statmod.htmlThey can't just use your real test scores because it wont be a level playing field eg some might get easier tests, etc. So in short, as long as your still ranked first or even second (as long as first place is able to pull of 50-worthy exam scores) then your all sweet