A Stone Sour is usually a sour cocktail with orange juice, and Dale DeGroff replaced the orange juice with pineapple juice in this "tropical" riff on a...
Recommend trying this one with a 2:1 ginger syrup, I had some I needed to use up and it melded very well with the bourbon, pineapple and lemon juice, didn't have pimento bitters so I gave it a hefty 2 dashes of regular angostura. Buffalo Trace was the bourbon.