No Trans-Continental Upgrade
As a NWA/Delta Platinum flyer, I Booked JFK-SFO last week and didn't get the upgrade bump - even up through the morning of the departure. It looked like there were open seats in FC, but reservations told me that the seats would most likely be released at the gate.
I opted to not take the flights without the confirmed upgrade. 7 hours each way in coach is more than I wanted to face.