Tiki talks me down

While definitely a tiki drink, this cocktail is a bit too astringent for my personal taste. Perhaps more orgeat would help to round out the flavors, or maybe a richer rum than the Mt. Gay Eclipse?  I’m tempted to try this with my El Dorado 12 year. Still, after a long and trying day, the booze and tiki accoutrements are quite welcome.  

Beachbum, PDT