For the record your ECU will NOT learn what's on the chip. The chip when installed overides the base program, when you remove it it reverts back to stock end of story. If you think otherwise, you're sadly mistaken. It simply is not PHYSICALLY possible for it to do that. The only way you can change the base setting for good is with a reflash. And I've seen only one dude do that. He's an ex-Ford programmer and has the "box" that allows him to access and rewrite the settings.
