Apparently, the Appetite for further Reform of Security of Payment Laws in major Australian States is evolving. You might be interested to make submissions for the very recent discussion papers in the three States. The NSW and Qld papers have very interesting information on the operation of the SOP regime. Here is the detail:
ACT:
Submission Deadline: 12 Feb 2016
http://haveyoursay.planning.act.gov.au/improving-the-act-building-regulatory-system
NSW
Submission Deadline: 26 Feb 2016
http://www.fairtrading.nsw.gov.au/ftw/About_us/Have_your_say/Security_of_payment_laws.page?
Queensland
Submission Deadline: 31 Mar 2016
https://www.getinvolved.qld.gov.au/gi/consultation/2810/view.html