Too small. :) More seriously, the regular Daiquiri is one of my favorite drinks, & (I.M.O.) the best way to evaluate a rum besides sniffing or tasting it straight out of the bottle.
I like upping the Smith & Cross to 1 1/4, decreasing the Campari to 3/4, and using Cocchi Vermouth di Torino. Creates a cocktail that's almost savory, but still has sweet notes & hopefully gives you what you want. Recipe from Taran Rosenthal, Durham area, NC, USA. It might be my favorite cocktail of all.