Drinks to have and not have

Lately I've been having a lot of drinks out on the town with grapefruit in them. I think it's because grapefruit is a bitter flavor, and bitter drinks are all the rage these days. Bring on the Campari, amaros, and homemade bitters. I actually have three articles in different publications coming up that focus on cocktail bitters. I've been playing with some grapefruit drinks lately with mixed success. Here is one that's just gross (found on DrinksMixer.com): Petite Fleur 1 part grapefruit juice 1 part white rum 1 part Cointreau Don't try this at home, kids! It's the essence of wrongness. But then I tried this one: Nevada Cocktail 1 1/2 ounce light rum 1 1/2 ounce grapefruit juice 1 dash bitters 1 ounce lime juice 2 tsp superfine sugar I like the drink because it tastes simple and still. The bitters are so necessary and subtle they make a huge difference. The drink tastes to me well-balanced (surprisingly not too sweet) and also not too acidic. My experimentation will continue, but tonight, I'll just have another. *update* I had another and it wasn't anywhere near as good. I am the worst bartender in the world.