I used Antica Formula vermouth and Fee Brothers mint bitters. Delicious blend of flavors, and maybe even one of my new favorites, although the mint was a touch strong. Are Fee mint bitters more intense than Bob's? In the next one I might use a drop or two less.

Used peppermint oil 2 drops, awesome drink.

Very nice. I had it edging slightly on the sweet side, but a lovely light mint flavour with a touch of Chartreuse. I enjoyed it a lot.