Here is an email I got from UNSW.
"Dear Brad,
Your ATAR + HSC Plus means you will be assessed for B Adv. Science with a score of 97.35 – this alone would make you very competitive for entry given that in 2011 the cut-off was 95.00.
Adding AAA into this means that essentially you will be assessed as holding the maximum possible ATAR 99.95 for the AAA eligible programs– (97.35 with a 5 point leeway – i.e. 102.35, which is obviously not possible so it is capped at 99.95).
So given that AAA nominees who have a preference in their UAC application for a program at UNSW (except for B Medicine/B Surgery) will receive a guaranteed offer into that program provided:
o Their ATAR or equivalent (yours will be 97.35 based on the information you have provided) is within 5 points of the published cut-off of their preferred program;
o They meet any additional selection criteria for the program; and
o They do not receive an offer to a higher preference then you will receive an offer to B Adv. Science.
I hope that this helps clarify the situation.
Kind regards,
Jenna Dennison
Student Information Officer | UNSW Student Recruitment
The University of New South Wales
UNSW SYDNEY NSW 2052
Australia"
So they definitely stack