Mortlach 16yr old one o my favorites I'm sad to see that it's to be withdrawn.
Unfortunately thats the price of being in with the Devil and accountants and share holders. Vintage ...
Personaly adding water to whisky adds to the various complex aromas/flavours that are in a Whisky.Be it Malt/Blend or otherwise
What I would never do is add TAP WATER as more often than not ...