Sorry, I realized I was unclear above. I know my chances EWR-SEA are slim due to timing AND the fact that it's a transcon. I don't really expect an upgrade there. But the next day on the SEA-ONT flight, I feel like there will be plenty of U space and since I'll have technically qualified, I want to take advantage of it!

Thanks for the answers Missy. How long should I expect it to take for my qualifying flight (this coming Friday) to post? I don't know if it's a x-hours later thing or flights are posted in bulk once a day/week/etc.