Roscoe had this incredible Koa top lying around the shop, but it was too thin to use on one of their carved top models. One short brainstorming session later, and they decided that this top will become a one-off Century Standard with a Koa top. Roscoe may offer similar one-off Standards in the future as thin tops present themselves, but they're not planning to make this a regular thing.
UPDATE: This one has been pre-ordered, so it is no longer available!