Long Island Raspberry Iced Tea recipe

At my fiirst bartending job, we had a guy who had won several bar competitions from NY all the way down to Miami. From what he passed down to the rest of us, if you omit the coke and replace it with a splash of cranberry, that is "the correct" way to make a LONG BEACH IT. He was the only person who I knew to do that, but many moons later I've heard that is a common recipe. Also, in the 3 years of working with him he never had a drink sent back so he must know a thing or two-lol.