Dear Simon: I wonder how many millilitres would you advise for a "dash" of absinthe? I have an easy jigger, but I would struggle to measure out 0.3125ml for a dash (using your 4 dashes = 1.25ml ratio)! In your 'buy the ingredients' panel on cocktail recipe pages, it looks as though you use a formula of one dash = 2ml to calculate the 'cost' of a cocktail: is this just indicative to give a cost? (I can see that formula is also used for bitters dashes too).