We've seen other recipes for the Bamboo that call for a little bit of Simple Syrup as well. All in all this recipe is on the drier side of things so some people may prefer a little bit of sugar in there. Our understanding is that this is a more modern interpretation of the recipe though. Feel free to add it, but know that it does stray slightly from the original. Another variation on the classic Bamboo Cocktail recipes is adding Sweet Vermouth in equal proportion to the Dry Vermouth. This creates a "Perfect" Bamboo. Once again, this strays from the original but adds a bit of sweetness to the drink to balance it out a little bit. If you're finding this recipe a little dry, try the variations we just mentioned to see if it helps things at all for your specific taste.