OK will do. In the end I booked the VN flight for HKG-HAN which means a 4 hr wait. Bit long, but better safe than sorry. I've searched here and other forums but seem to get different info everywhere. I think it's a lot more straightforward if the pax is on a same-ticket/carrier itinerary. As long as there's a semi-decent TG/*A lounge I don't mind... Will let you know. Cheers