I'd like to try to book a mileage upgrade to Business for DTW-PEK (~ 7day roundtrip) around the second week of July after the non-stop has started service. I want the MQMs for re-qualification and I'm willing to pay the Y/B/M fare if I can confirm the upgrade. I miss the NW system that let me do this when I booked the ticket online! I'm looking for recommendations for assistance. For example, should I purchase Expert Flyer to check inventory/availability ahead of time or try to use a service such as ThePointsGuy? Any recommendations would be appreciated.