Global TM. I know of at least three Australian airlines/operators that will ASK you if you got your Aussie ATPL based on an ATPL issued in another country or whether you got it by going through the Aussie system.
People seem to infer that because such and such an airline/operator asked the question that it means you MUST have your aussie ATPL credits.
Some airlines/operators seem to frown on aussies who 'bypass' the Australian ATPL by going over to the US, getting their ATPL over there and then come back, do the airlaw exam and get their Aussie ATPL. Thus poeple are asked the question about the basis of their Aussie ATPL.
One reason behind this is that if the pilot decides to go back and do the aussie ATPL's and fails a subject then the pilot no longer has an ATPL and the airline/operator is now short one pilot with ATPL privilidges. And yes, it has happened!
It would appear that if you are from overseas and have a significant amount of experience then the airlines aren't quite as fussed about your Australian ATPL subjects.
Cheers
C & B