FYI/Datapoint: I was able to snag 1x NH F seat t-2 from departure and upgrade my outbound J from ORD to HND. Last night I was browsing cow tool and to my surprise a F seat for the day after my scheduled departure popped up. Well, sure enough while perusing cow tool again earlier today, lo and behold a F seat popped up for my own flight. I really think the stars aligned for this one today as the AP telephone line was only 1h10 wait so the seat hadn't been snagged yet.