you better off throwing a coin and decide... or why not just do both. and the one that you don't come first in assessments, just don't spend as much time revising it for the hsc exam.
one more thing you might not have realised: hsc exam mark does not equals to "raw" or real exam mark.
ahhh... lavoisier the father of modern chemistry.
but whats with him and his oxygens... just because he named it he has to conclude everything contained oxygen... idiot.
but one could judge the smartness by looking at the cut off for 100 or whatever other uai, and by compensating for the continue shift to higher scales of this refined scaling system.