Just a reminder that if you do plan to use this booking toward any EYW bonus, whether you are aiming at top 10 / 30 / 50 or not, a cancel and rebook will disqualify all flights related to this booking.
I actually have a flight in late November that I haven't bothered to upgrade.
I have an EF alert for Z<5, but I'm quite content to wait until T-48.
Mind you, it's 6am on a Wednesday, so I'm pretty confident it will be J1 on the Monday.
That's the other thing I should mention. I've basically stopped doing the eUp on these bookings. There's no point. There's always J space