20 points isn't much, I would just borrow it. Keep in mind once points are borrowed they cannot be returned to their original use year and cannot be banked. That's why I try to avoid borrowing heavily. I did borrow 3 points for my trip next week that I had to cancel, so those 3 points are now hanging in limbo, they have to be used by March 31 (April use year). But it's only 3 points so it's no big deal, I hate to think if they would have been 100's. I probably would have rented the reservation instead of cancelling it.