Tasted with these Rosebanks: 1989-2013 G&M cask RO/13/03 (83 pts), 22yo 1981-2004 Rare Malts (90), 27yo 1975-2002 DL OMC (87), and 34yo 1940s-1970s George Strachan 70 proof (88).
First some completely dried out bouillons. Then champagne that's lost its bubbles, and some faint spices and varnished wood. Smells a bit watery.
A round profile with a watered down, yet still quite rich, spicy sherry bite that's very different than contemporary sherry casks.
Slightly dry, with faint sherry oak. Here you really feel the 40%, sadly.