Since Jan 2013, i had been working ashore as Port Captain for Heavy lift / Project cargo.
Presently stationed in Dubai, UAE
AMSA had given me 8 years + experience in last 10 years, which includes my sailing, Marine Pilot (2009 - 2010) & as Port Captain.
When EOI was filed, i had opted for only 5/6 years as i don't want to run into trouble.
My employments were on contractual basis through out...
I feel that, it should not be a concerned whether your employment is on contract or permanent basis.
Anybody who had sailed for about 6 months in a year, should be able to justify it to the CO.
I just want to address one more point.
No need to assess your Marine related Master or Bachelors degree (Nautical Science. Nautical Technology etc), you may claim points (EOI) and upload the certificate when filing your VISA.
I mean, no need to assess the same thru AMSA and / or anybody.
Intend to move to Melbourne, by around mid Jan 2016.