Decided to make it my first time taking into consideration previous comments. So: 1:1:1 of Navy strength gin (Chemist, from here in Asheville NC USA), Punt e Mes, Cynar. First sip: smooth, with subtle (compared to Negroni) bitterness...and then delayed-reaction POW!! from the Cynar. Nice, and fascinating the way the Cynar hits in timed-release fashion.
Very tasty. Could be a nice introduction for amaro novitiates. We used blended Scotch because it was handy (and because -- for first try of this recipe -- we didn't want to "waste" single malt on a drink we might not like).