RAAFSA,
You have outlined the problem quite nicley.
1) is partially only a sympton.
Also, RAAF bases tend to have very little airspace (40nm = about 6-7 minutes from receiving a B737 on freq to handing it off to TWR). The surrounding airspace belongs to ASA and we don't get the benefits of maestro or a dedicated Flow controller. If 2 acft are handed off in such a way that indicates a dead heat to the rwy (as frequently occurred in DN) and I only have 40nm to do something about, then one of them is in for some extra track miles. Without a flow controller, then when APP is busy inside their 40nm, looking out to 100nm to check someone else's airspace to coordinate speed restrictions etc just doesn't happen.
2) is the problem, along with what I percieve to be the two organisations not working as one unit. If they did the 40nm boundary would not even be an issue, nor should it be.
Unless ASA take over the RAAF ATC function at places like Darwin and Townsville there is little, no there is NO point phoning the SATCO as he/she can do nothing about the poor level of service.
It has taken me 17 yrs of trying to learn that lesson.