Convertible question

On the dutchman panel of most A-bodies there are two grooves from the rear window edges back to the trunk ( I guess where the quarter is attached ). My 67 Barracuda convertible does not have them. Is this normal for a convertible? So much body work has been done on this car that I don`t know if the grooves existed or if they were filled in at sometime. If they`re supposed to be there I`d like to put them back in and if not, I`m okay. Does anybody have a picture of that area of their convertible they can share? Thanks