A light 'gold' rum (circa three years old) that shows its age works better in this orange liqueur-influenced Daiquiri than a charcoal-filtered light rum...
As said this recipe IMHO results not only in an overly dry but an unbalanced cocktail. I suggest the following measures: 6 cl Rum, 3 cl Curacao, 1,5 cl lime juice, the zests and 3 drops saline solution. Eventually you can add some rich syrup to taste.