I find that super-conforming is quite hard to break, but saving a super conformer back to the Figures palette is one way to break it, and I don't have an answer to that. Once a super conformer is loaded into a scene it is tied to a character with a particular figure number, and will only super-conform to a character with that same figure number hence forwards and forever, short of actually editing the cr2 to restore the original slaving code.

Quote - ...I have some superconforming items straight from the vendor that have the :1 intact.

Load two instances of the same character figure in the same scene, then try to super-conform the clothing to the second  the character loaded. I bet you the super-conform does not work correctly. I bet you it responds to changes in the morphs of the first character, but not changes to morphs in the character it is conformed to. Much of the time, only one character is loaded in a scene, and that character usually uses a number of ":1", so super-conformers with ":1" in the slaving code will probably work much of the time, but not in all circumstances.