I've been out of the loop for a couple months. I have SX OS and want to be able to play games that require higher firmware versions as I'm currently on 4.1. I haven't done emunand yet, and I have a backup of slightly cleaner NAND (I played a couple XCIs before I backed up the NAND. I've still only used XCIs, but I've used a lot more. No LayeredFS or NSPs). If I install emunand now, can I restore my somewhat clean NAND backup over the official NAND later without overwriting my emunand? Should I just restore my old NAND now before creating emunand? Is there even any benifit to restoring my old NAND considering I played a few XCIs on it and I haven't done anything since except play more XCIs?