System menu 3.2 runs on IOS 30, so yes, installing IOS 53 is perfectly safe, and you will not get a brick.Download the wad from ModMii and install it with a wad manager.
So it's perfectly safe to install the IOS53.WAD on a 3.2E system just like that? I just wanna make sure..
Thanks. Also, as I already asked, is there any recommended speed to burn the backups at? I have searched for it, but there's almost as many answers as there are topic about it.. Does it really matter?