Tried both spec and CBās Valentino style. Reading the description for Martini rubino vermouth, I split the Campari with Select, actual vermouth was carpano. Two dashes of my favourite Bitter Truth orange bitters. Wonderful orange notes balancing the richness and bittersweetness of the other ingredients. I combined remy Martin and Camus cognacs to happy effect. A fitting celebratory libation for the end of my working year!
I should have referred to 2:1:1 proportions as "Boulevardier style" since Valentinos are nominally 4:1:1, which is quite lean. I finally got some Martini & Rossi Riserva Speciale Rubino Vermouth (while traveling in Portland Oregon!) and was able to pair it with their Riserva Speciale Bitter in an Independence Day Celebration using Braastad VSOP. What a combo: just the right balance of sweet and bitter with neither showing to excess, and the complexity of the vermouth and the bitter pair up like they were meant to be combined this way. Don't know if this was how D'Ercole originally designed it but this version alone merits another half star.