I would say this is pretty accurate but I would like to add that Calabrese are very insular. They think they are superior to everyone else (not all of them of course). and like to hang out amongst themselves (atleast in my experience with the calabrese around toronto). Barese tend to marry either other barese or sicilians for some reason. The barese dialect is the most similar to neapolitan, but it is still very very different, very hard to understand if your not Barese. Most Barese in the US tend to be based in chicago, so you got alot of outfit guys with part/full Barese heritage including Tony Spilotro, frank cullotta, joe lombardo, john di fronzo, the cassano bros and many more. Carmen DiNunzio from boston is partly barese heritage, so is stefano sollecito in montreal.