Cask No. 593, a Madeira cask which was likely used for cask finishing before being filled in 2011; and Cask No. 3545, a European oak butt which was prepared for maturing sherry but delivered to Scotland as a virgin oak cask.
They were bottled at 63% ABV and 61% ABV respectively.
The Madeira cask is relatively unusual and has a really spicy / vibrant note.