Hoping some fixed week owners can chime in. How long can I wait until converting my week into points? My UY is September but my fixed week is in December. Do I have to convert before that week at 11 months out? Could I wait until say January to see if any December weeks open up before using the fixed week? One reason I ask is I have leftover 2018 points I may want to bank forward and use in a 2019 reservation. TIA!!