Bill, do you have dates for when this roof change took place? There's information that says that the roof was replaced on these cars but no specific dates can be found. I appreciate the constructive criticism on the kit. The Central of Georgia Railway Historical Society's goal is to be as accurate as possible on a project of this type. Do you, or anyone else know if a drawing exist for the Murphy roof as applied to these cars? It's highly possible that if the information can be located that a future run of these cars could incorporate the changes discussed here. Thanks for your help. Todd Horton