spressomon
Expedition Leader
^ The best method for longer term storing of down products is fluffed and inside a large clean bag so no compression on the down. The RTT puts some compression on the down...tradeoff for convenience.
What a bummer, looks like they don't make the Katahdin anymore. An their largest size only goes to 48 inches wide.
https://www.jacksrbetter.com/product-category/camping-quilts/
We use a queen size down quilt from enlightened equipment. A bit pricey, but we love it.
https://enlightenedequipment.com/itasca-quilts/