it's really not though. you're getting 1.5 oz liquor whether I put it in a shot glass, a rocks glass with no ice, a rocks glass with half a scoop of ice, a shaker with a full scoop of ice and then strain into a martini glass, a highball glass full of ice, a pint glass with no ice, w/e. Most mixers are so dirt cheap compared to the tremendous margin on alcohol that it doesn't make a ton of difference.