This could also possibly point to Adelaide not employing z-scores to rank their applicants post-interview - you mentioned you only managed to snag a second-round BMP from Adelaide despite a 99.80 and godly 235, which seems unlikely had z-scores been employed.The z-scores are calculated on the applicants in contention, its standard deviation is much tighter than 25.
To illustrate, 95%ile was 190, 99%ile starts from 200, mine was 235. Whatever the SD was I was 3 times better over 99th compared to 99th over 95th.
Similarly with FunTimes' 3540, 3 times better over a 3000 (97th?) compared to 3000 over 2840 (90th).