yeh, u can definitely lie about ur backups. they really have no right to ask/know. in regard to the original topic, i still maintain that its debatable and really depends on which med or law school.
e.g.
UQ provisional entry, although it says u need 99, 94 atar would be sufficient coupled with a very very average UMAT score. they give 2 bonus ATAR points for doing their level of Maths C ~ maths ext2, 2 points for a doing a language for ur HSC and 1 point if ur studying an enrichment course at university.
same for Newcastle, 93 ATAR is sufficient coupled with a decent umat and interview.