I may be taking UA's JFK-NRT flight in F -- what are people's experience with priority baggage handling in NRT? I know well that the priority tag is often a joke in N.A. and Europe, but Asian carriers generally do a pretty good job with them. I'll be checking in at JFK, so no connecting flight baggage transfer to deal with.

(And to anticipate the question, it's a RTW ticket and NH has no A, or even F, availability for that date I expect to travel.)