If using packaged pineapple juice (rather than fresh), then it pays to add a couple of muddled wedges of fresh pineapple to the recipe above as this improves...
The origin attributed, allegedly, to the reopening after renovation of the Flamingo Hotel in Las Vegas in 1954. Reducing pineapple juice to 1 oz, increase lime to 3/4 oz and grenadine to 1/4 oz helps the overall balance IMHO. Garnish with a long thin dash of Peychauds Bitters across the foamy top. The recipe I have uses a good quality white rum. Actually very tasty and perfect for a warm afternoon by the pool, a favorite of the spousal unit!
Many thanks, Jon. I've added history and will try your recipe and rephotograph to remove the existing star fruit garnish, which certainly doesn't belong.