After the coupling issues with the milk cars and plug door reefers, I've been afraid to purchase new Lionel cars - getting mine used from a vendor in Georgia who can tell me if the car has the older premium trucks. I like the new stuff, and would like to get some of them, but I want them to work with existing rolling stock and locos.
Has Lionel redesigned the new Vietnamese couplers so they work with older equipment, or are they still problematic?