Standby on earlier flight on UA award ticket
I'm looking at booking an award ticket from HND-SYD-BNE via UA, where HND-SYD is on NH and SYD-BNE is VA. Based on award availability and a 2 hour MCT, UA is only showing a 6+ hour connection in SYD, though it looks like this route is flown every hour/half-hour. Assuming I make it through customs quickly, does VA have a process for going standby on an earlier flight? And if so, does it matter that I'm on a UA award ticket? I do have UA*G status, which affords a number of priority benefits with VA, not sure if standby is one of them. Can't find anything on UA or VA's website on this -- anyone have firsthand experience here?