On the way back to Perth we usually take the Ludlow turnoff. It's a good spot to stop and check the trailer - better to make an early adjustment to the load than having to stop later on the highway. For us, it's a well worn route and routine.
The journey home takes between three and a half to four hours depending on traffic and the load we are carrying. I often think that I could have flown to Melbourne in the same amount of time it takes us to travel to the vineyard!