My bottling wasn't one of the very old ones (with screwcap), but it wasn't a very recent bottling either - my guess is around 2005...
The quality is very high and apart from maybe Benromach 10yo 100 Proof there is no recent large-batch cask strength OB coming close to this.
This malt is an easy 89 for me scratching the 90 on the palate.
A curtain of beeswax all over the nose, behind that baked apples, candied citrus, high quality caramel and a hint of marmite (it's a savoury one). With water it opens up even more, getting more complex and resinous - old-fashioned indeed - with rum-soaked raisins, butterscotch, wormwood, something dusty and earthy and again that very satisfying savoury aroma that in my opinion hints at Mortlach (could be, but could also be something else - other Speyside distilleries produced great beefy malt too).
If you sip it neatly this malt will hit you quite hard between the eyes, but if you taste just two or three drops and let them find their way on your tongue you'll get awarded with a wonderful, intense flavour, which is old-fashioned Speyside par excellence. Now there are some tropical fruits (mango, baked pineapple) intermingled with very ripe (or dried) apples, some orange zest and very waxy honey. You can feel just a hint of smoke and wood spice on the palate - generally this whisky tastes older than just 10 years. With water the flavour experience even intensifies, the mouthfeel is just excellent. The savoury side is more pronounced and the development is even better with water. This is very special and sends many a modern expression back to school.
Long, intense, sweet and waxy and slightly smoky/phenolic. Very satisfying.