The medium martini doe not make it into either Shaken (The official 007 cocktail book) or Bond Cocktails (But I hadn't realised how often James asked for a Vodka Martini, shaken not stirred!!). I tried a Head to head with a Medium Martini (1922 recipe, Harry McElhone, quoted in the Martini Cocktail book) versus this recipe versus the Perfect Martini and , for me, the addition of the Orange bitters gives the Perfect Martini the edge.
Interesting: with most brandy based champagne cocktails, I really have to cut back on the brandy, but with the calvados, 30ml is fine. 5ml of my raspberry sugar syrup produces an attractive bright pink cocktail - excellent for social occasions.