Originally Posted by
chromedome00
One other question - is it still the same that this is a best effort kind of thing? If I were to book a flight to Tokyo as
MonAmQB has done, and apply my certificate at time of booking - is it still possible I will get bumped by a paying customer? If so, does that make booking further in advance more of a risk?
I don't think you will be bumped by a paying customer. Once you clear the D1 upgrade, they reissue your ticket. The D1 suite will be yours. If DL bumps you out of that seat involuntarily (extremely unlikely) for any reason on their end, you will definitely get your GUC back (you can ask for a brand new exp date) and ask for more compensation.