Made w 1/2 oz lime & seemed a bit unbalanced, but still not overly sweet...would've been 2 stars but added 1/4 oz Benedictine and 1/4 oz Cointreau (per drink), then one more dash bitters; these mods brought it up to a 3. — ★★★
Not much flavor
After reviewing and experimenting with various recipes, I reduced the lime juice to 1/2 oz. (as suggested here) and boosted the curacao (I used Giffard Curaçao Triple Sec) to 1 oz. The result was just right for my taste.
Excellent and balanced. A classic for a reason.
2 oz Tanqueray, 3/4 oz lime, 1/2 oz PF dry curaçao, 1/4 oz 2:1 simple, 1 dash Angostura, 1 dash orange bitters.
Year Round Gin
use Old Tom gin
Followed the recipe in the comments with navy strength Plymouth (and, accidentally, 1/2oz lime). Well balanced, each ingredient present.
Try with grapefruit liqueur
My standard recipe: 1.5 oz gin, 3/4 oz triple sec, 0.5 oz lime, 2 ds angostura
Wonderful recipe in Drink Magazine calls for 2 oz high proof london dry (I like martin miller westbourne strength), 2/3 oz. orange curaçao, 1/3 oz. lime, and liberal 1-2 dashes each aromatic and orange bitters. Color is a beautiful ruby grapefruit color. Delicious and elegant.