here's Ultimate's site, which of course is also in the Railwire links section:
http://www.ultimatenscale.comApparently early prototypes had no hitches. Ultimate offers 5 different TOFC deck conversions for the Atlas car:
http://www.ultimatenscale.com/n-scale-decks.htmlNote that "
The decks, flat cars and trailer kits do not include pins or hitches. This enables the customer to use any method desired."
Of course they sell those too!