So I made a "Jamaica Rum Daiquiri" as featured on Alpenz's page for Smith & Cross, first time, despite the bottle being 60% finished...
1 oz S&C
1 oz lime juice
2/3 oz (?*) simple (in my case Demerara)
Although I prefer my Daiquiris to be drier and more boozy, this is one of the most perfectly balanced drinks I've ever had. Sweet, but balanced by sour, with a deep richness brought out by the rum. Next time I'll change the proportions, but wow, this cocktail is like poetry on the tongue.
*(who the hell has 1/3 or 2/3 oz measurements?)
Someone who is used of working with the metric system, I suspect. 1 oz is close enough to 30mL to not matter a whole lot (28.somethingsomething mL). 1/3 and 2/3 of an oz are 10 and 20mL--very sensible and nicely rounded metric measurements.