I'm thinking of upgrading from 3.2E to 4.0E, but my Wii is completely IOS based (no chip, no boot 2). I also have Preloader 0.27 (which I might upgrade first), which I can run HBC 1.0.2 then BootMii from and have access to NAND backup/restore. My questions: 1) if I upgrade to 4.0, will I lose Preloader? And if so, is it 100% to re-install it on 4.0? 2) will a NAND restore work via IOS? Obviously I need Preloader at all times to keep things brick-proof.