Channel 7 Sunday Night Program About VH-MDX
Weekends possibly, but it's been my experience having lived and worked at Williamtown that Mon-Fri the airspace is quite busy, with Hornets/Hawks doing a 3 mile initial straight over the coast at 350kias and 1500ftAGL. Low initials can be done at or below 500ffAGL.
In terms of number of movements, it was usual for about 30 Hornet movements per day, and about 20 Hawk. Add to that 4SQN PC9's also.
I don't see how a lane could provide separation from that traffic, without requiring a clearance.
Perhaps I'm missing the point.