We're thinking about renting some points from friends of ours who are DVC members, for a trip next April. But the problem is, I hate to commit, and then have something come up where we can't go, and then be on the hook for all those points. Now, I understand that, as DVC members, it would be my friends who would book the room under their points and they would do all the talking with the reservations people, and they would be out the points (and consequently, WE would be out the money that we owe our friends for the points). So how soon before the trip can you cancel and not have any kind of penalty?