So my friend has my 3ds that has cfw on it and i have my 3ds xl with the sky3ds flashcard. What im looking to do is do a system transfer from the cfw 3ds to my 3ds xl due to my account being on the 3ds with cfw. Is there any steps i need to take before doing the transfer? My concern is the cfw getting screwed up during the transfer. From my understanding after a system transfer it formats the sd card, wouldn't that ruin the cfw entirely? I'd rather be safe than sorry.