Originally Posted by CPRich

As a 1K, I can re-deposit for free. But seeing that it's our bi-annual use of our owned timeshare on Maui, my confidence is pretty high. I've cancelled/re-deposited 1 award flight in my life, of 30+ award flights booked.

And yes, you have to pay a fee if you change your mind. Whether you book 330, 180, 90, or 5 days in advance. But you won't find award flights to Hawaii 90 or 5 days in advance, ime.