Some great info on MPM here. A couple of additional questions. I'm currently booked:
YYZ-ORD-ICN-HKG (stop)-PEK (open jaw)-PVG-ICN-LAX-ORD-YYZ
I'm trying to see if I can change my inbound flight from PVG to via the Atlantic.
So if I follow the definition, my MPM would be based on YYZ-HKG (9370 miles from EF). But when I calculate the # of miles I fly on the way home, do I calculate from HKG or PVG in this case?