For what it's worth, if I'm asked to operate on the Tasman or South Pacific as a result of action, I for one won't be compromising the process. URTI, sick, what ever it takes
The company asks for your medical certificate what then?
When it comes to unions and/or industrial action Airlines play hard ball.
Make sure you have everything sorted out before you start risking your own job.
Personally the unions should be taking the lead here and sort it out beforehand what position the Australian pilots should be taking before people are called up.