Rio GrandSpey 10/11
This recently introduced, high performance extra-long belly floating spey line has been used once on grass and twice in the water. It's in like-new condition, in original spool and box.
Although classified as a WF10/11, its 1500 grains make it, in my opinion, more like a 12-weight, for the most powerful spey rods only. $40 including free shipping in North America.