Shake long with a lot of ice, strain in coupe, garnish with a thin cucumber slice floated. Serve.
Martini fiero is like a vermouth rosato but with more grapefruit notes.
You can maybe add 1/4 grapefruit juice to substitute or grapefruit liqueur or shake the mix with a piece of grapefruit peel.
Nice bitterness and acidity brought front thanks to addition of vermouth.