Juice fresh lemons and limes until you have about 2.5 cups of juice (1.5 cups lemon, 1 cup lime). In a pitcher or mixing container, combine the lemon and lime juice with 1.5 cups simple syrup. Stir until fully combined. If the mix is very tart, add up to 1/4 cup water to adjust sweetness and volume. Chill briefly while assembling the cocktail.

Assemble Pitcher

Combine spirits and mix

In a 2–3 quart pitcher, pour 2 cups vodka, 2 cups tequila, 2 cups rum, 2 cups gin and 3/4 cup blue curaçao. Add 3 cups of the prepared sour mix. Stir thoroughly for 20–30 seconds to fully incorporate the liqueur and sour mix with the spirits.

Add ice and soda

Add about 4–6 cups of ice to the pitcher (enough to chill without over-diluting). Pour in 4 cups Sierra Mist (lemon-lime soda) and gently stir once to combine. Taste and adjust: if too strong, add more soda; if too tart, add a splash more simple syrup (about 1–2 tablespoons at a time).

Garnish and serve

Place lemon and lime wheels in the pitcher for garnish and visual appeal. To serve, fill highball glasses with ice, pour from the pitcher, and top each glass with an extra splash of Sierra Mist if desired. Serve with straws and optional cocktail stirrers.