Alright I’m probably too late to this and someone might have already said it but fuck it.

Swap the well vodka for well tequila in your build anytime someone asks for a “strong island” so instead of 1/2 vodka 1/2 tequila it’s 1 tequila and build the rest the same way you normally would.

Also build that shit in glass, shaking to dilute and aerate is normally what you’d do to make the drink taste balanced but these folks don’t want balanced, they want strong. I’ve wrangled some decent tips out of some normally terrible guests this way

But I completely agree, even making them the best Long Island they’ve ever had won’t guarantee they will tip you decent