MEM-CLT-OKC CR9/A320 that I referenced above getting upgraded at the window....
Both flights today had 2-3 empty seats in F and nobody on the waitlist. I've discovered as a Plat that I pretty much always get upgraded going on any flight in/out of Oklahoma City except for DFW. And, I almost never get upgraded going to/from DFW and rarely get upgraded beyond DFW. Needless to say I avoid DFW now if I can.