Decided to have a go at this tonight but no Daiquiri Bitters, sorry Simon - I need to pop up and get some but for whatever reason the Peychaud's kept looking up at me and I'll be, two dashes later - it married up pretty damn well with the Chartreuse.
I also did not have the bitters (I swear every cocktail I look at calls for Difford’s daiquiri bitters!) but absolutely do not let that stop you. Fantastic cocktail.