China, give me an archived filght plan on the route you're referring to and I'll take a look. Even if the airborne ERAs are the same as the planned, you still have the 5%, and to a lesser amount the immediate descent to 14 or 10k, which may be TONNES different from what is actually required airborne.
Have you or anyone you know ever gone below this INFLIGHT requirement? If so, what was the resulting course of action?
I'm having trouble recalling a time on NOPAC when I was stuck with the same ERAs inflight. UHPP is an option 90% and PASY 30-40%.