CO comped me as a UA 1P their gold status so I am looking into flying them to HKG in late FEB. APpreciate your answers -

What are their loads like ?
What are the chances of an op upgrade with 0 miles in the bank ?
Does this flight ever have to make tech stops unplanned like UA LAX-HKG did ?
Has anyone ever done this through HNL and Guam ?