An excellent Martini. On a second pass at it, we split the Vermouth 2/3 dry (Noilly Prat) and 1/3 bianco (Contratto). To our taste, the bianco lifts and broadens the drink with its floral notes and gentle sweetness.
A good shout. I only had bianco on hand to try this, and it's still a great martini, considering I normally take my martinis bone dry. Once I get some proper dry vermouth back in my bar, I'll try your version!