ORD-PHL on an A321, at T-24, there was J2 showing in EF so predictably I did not get upgraded (as Gold). At T-13, I did get the upgrade email and EF showed J1. My rolling 12 month spend is about $5000 as Gold. Late last year, after a period of sporadic flying my Gold upgrades were rare since my rolling EQD was low. Now they are coming notably more often, with some pleasant surprise.