Priiloader v.5 has a nasty bug and can brick you if you don't already have the internet setup and configured for use on the Wii. If you have BootMii/boot2 and a NAND backup, you're (relatively) all but bullet-proof. Usually when folks have softmodded their Wii awhile ago, we refer them to this thread. Betas are exactly that with Priiloader and generally users are discouraged from trying them. BootMii/boot2 gives you somewhat of a license to "feel free," lol.