Water and/or ice really opens up a lot of flavors that are masked by the alcohol, especially in higher proof whiskey. Add water...just a little bit at a time until you like it. Use an eyedropper if you have to, (a couple of the tasting experiences that we attended at distilleries included an eyedropper & a small beaker of water), and add a few drops at a time until you figure out how much you like. A lot of my friends who are scotch drinkers add water, or ice, to their whiskey, regardless of the proof because it opens them up.