Which airports would they use - BNE or MEL, or smaller ones? BNE Is the second biggest for movements (including QantasLink), so it would make sense from a sample size to have more pax using it to gather relevant data faster.
Then, which Gates would they use - which Gates ate used more, or are better equipped to have the two lanes. The gates out on the pod (17 to 21) have more available space, but further away; whilst Gates 22 to 24 are on the main concourse - do they give any benefits? Would Gate 22, the closest to the QC, be the best option?
Anyway, enough of my musings...