Nose (undiluted): a touch solventy at first, then rich caramel and cream aromas, reminiscent of Werther's Original hard candies, toasted oak, cola, and a bit of rye spice in the background, although there’s actually no rye grain here. It’s 95% corn and 5% barley.
Palate (undiluted): rich arrival, surprisingly mouth-coating for something bottled at 40% abv, floral honey, figs, orange zest, a touch of cinnamon.
Finish: medium length, more honey, rye spice, flat cola, ending on a slightly bitter (but still pleasing) orange zest note.
Adding water emphasizes the slight bitter note on the finish. But this is not an "off" vodka-esque note nor is it an acetone or spirity bitterness. It's akin to adding a dash of orange bitters to your whisky. I think this would make Signal Hill ideal in a Manhattan or even a whisky sour. The whisky is well-balanced and is perfect on its own as a digestif. 81/100