Very nice anytime drink.
I substituted half of the Blanco tequila for reposado tequila, to get a little more of that "tequila taste". Highly recommended.
Added 1oz/30ml of white chocolate liquor and switched the Havana club rum for Plantation Barbados rum (gives it a bit more rum taste, which makes it feel a bit more "adult"... which sounds silly because of the added chocolate liquor... Oh well I'm drunk and I'll stand by it, at least til the morning regrets kick in).
I substituted half of the Blanco tequila for reposado tequila, to get a little more of that "tequila taste". Highly recommended.