The nose improves when water is added; the palate, not so much.
Nicely creamy and thick, with creme caramel, vanilla custard, tinned fruit, and fragrant oak.
If there was an official 25-year-old OB, this is what I imagine it would be like. Pretty awesome.
Pears galore (this is a Glenlivet alright) and maybe also tinned mandarins, but I'm missing riper and more diverse fruit notes, which seem to get lost in the intensity of the pronounced oak influence. It's also rather sweet, with a big corn-syrup / glucose vibe from those smaller ex-bourbon barrels. Has a nice kick from the oak at cask strength. Unfortunately, it vanishes when you add water.
Sweet and well-oaked, still very creamy, but the fruit from the nose can only be found in the distant background by now. I also find the oak very prominent at this point, especially with water. Still a very nice bottling, comes across a bit like the big brother of the official "Original Stories" (Illicit Still, Licensed Dram etc.) series in its emphasis on fruit, sweetness, and oak.