I'm reviewing an upcoming itin and the MQM calculations are strange. All segments are on partner airlines (KL, AZ and their regional subsidiaries). Printing the itinerary from Delta.com gives the following as "miles flown". They don't jibe with MQM's ORD-AMS 4106 AMS-PSA 649 PSA-FCO 160 FCO-ORD 4807 If I add those with the minimum 500 for the PSA-FCO segment (which I rec'd for the same segment last month) I get 10062. I did a screen cap of the booking page right before I confirmed the purchase, it shows MQM's earned=9443, a difference of 619 mqm's. Also note, I've flown the same FCO-ORD segment twice this year and it yields 4823, not 4807 Is this just another case of Delta.com being goofy, or is there some new "enhancement" in how they're calculating MQM's earned on partners?