Our IFR Pickup was intentionally changed by the people at CASA so it would not work.
Re Williamtown, I was not involved in the decision to change the level of the class E airspace. If I was responsible for the detail it would be done correctly- just as the AMATS changes were.
No doubt it can be done using en-route standards but I don't know why someone would want to do it this way.
Airspace change requires skilled leadership and in depth knowledge of the way the system being copied works.
Don't complain to me on PPRUNE- talk to your Boss.