I just wasted the rest of a bottle of Ford's working through fixing the flaws here (groan). I'm close... I settled on 50:40:15, though that vermouth could probably drop another 5-10 ml... Too much absinthe in the original recipe. Dropped it by half second try, still a bit much. Third time, just spritzed the glass with it, but that was a little too far. Maybe 2.5 ml is ideal. I don't know. I've run out of gin, folks.