Instructions
Shake all ingredients, aside from the rinse. Strain into a Campari-rinsed coupe.
Notes
I used Four Pillars, an Australian gin. Four Pillars is fairly soft and, as a result, lost the fight against the grapefruit juice and Solerno. My first suggestion in tinkering with this drink would be to sub in a more juniper-forward gin: maybe even as a split base.
I am a huge fan of Four Pillars gin. I would suggest trying this cocktail with Four Pillars Bloody Shiraz gin, and/or Rare Dry gin, and/or Olive Leaf gin.