I've roasted my own coffee for 30+years and procure very nice home equipment for all coffee types. Coffee snobs are pervasive & annoying.

Obviously, liquor & cocktail snobs are just as pervasive & snarky. I'm sipping your exact cocktail recipe above & loving it. It is not cloyingly sweet, as many/most bar recipes that have given "tiki" a bad name.

Kudos to your research, testing & development... & to your nod to past masters & innovators, Simon!