Tomatin Contrast is an exciting experiment to try and show the difference between bourbon and sherry maturation. For each they have used casks from the same vintages: 1973, 1977, 1988, 1991, 2002 and 2006. All of them in equal measure. So they used just as much old whisky as they did young whisky.
A bit of an eccentric Tomatin 1987 from Càrn Mòr's Celebration of the Cask-series. If you approach this whisky open-minded, there's a good chance you'll be pleasantly surprised by all the interesting things it has to offer.