There are pigs everywhere in WA. You'll be surprised where pigs will take up residence. There a few guys on here from Perth that hunt in the hills, Staghound being one.
I'm from busso and hunt round here down to Nannup, Bridgetown and across towards Margaret river.
Plenty of good spots if you have local knowledge...
The attention span might mean he loses his focus while he is lugging. maybe something distracts him like you arriving at the pig. He might get bored on the ute or on his way into the pig and lose track of the scent.