At a formal whisky tasting with Charles Maclean, a founding editor of Whisky Magazine, we were required to taste all of the whiskys at 20% alcohol by volume. Since many scotchs are 80 proof, or 40% abv, that required mixing the room temperature spring water 50/50 with the whisky in order to be able to identify all of the flavor and aroma nuances. My favorite quote of Maclean's was when he was asked what his favorite scotch was. His reply was "the one thats in my hand." I have to agree.
The next morning, at yet another formal whisky tasting, in the board room of the Strathisla Distillery, Master Blender Colin Scott also required a 20%abv mix.
However, those were formal tastings. As Colin Scott said... "some people like their whisky neat, some with water, or soda, or milk, or coke, or lemonade, or soda. The main thing is... drink it."
So I guess my advice is to try your whisky with varying amounts of water, or not, down to 20% abv, and then decide where you personally like it.
After all, there are no "Scotch Police".