On tap at Ambulance, magnificent ‘third version’ ups the bourbon-barrel aging by winningly mixing ’14 vintage with newer batch. Resilient bourbon chocolate spicing, sugary vanilla creaming and sweet cocoa dalliance pickup thriving rye-toasted pecan adjunct. Chocolate brownie, butterscotch rum, toffee fudge and molasses cookie illusions gain strength. Whiskey-soaked raisin and cherry wisps glimmer behind velvety bourbon finish.