Start by filling a highball or large glass with plenty of ice cubes, letting them reach near the top. Pour the Maestror rum over the ice, then squeeze in the juice of half a lime, allowing it to mix naturally with the rum.
Slowly pour the chilled ginger ale into the glass so it blends gently without losing its fizz. Take a long spoon or stirrer and give the drink a gentle stir, just enough to combine the ingredients evenly.
Finish by taking a lime wedge or twist, express its oils over the surface of the drink, and drop it in as a garnish.
Serve immediately, while the ice keeps the cocktail perfectly cold and refreshing. Enjoy!