A few thread I've seen for swapping to a larger sd card recommend backing up the emuNand, copying the contents of the sd card to the new sd card, and then injecting the backed up emuNand to sysNand. Is there a reason for the back up and injection if a system is running a9lh? I'm assuming that with a9lh and CWF on SysNand that there is no need to mess with emuNand any more. Some feedback I've gotten is that the EmuNand backup and re-inject is there to protect the your saves in the event of a problem. But what problems can occur by copying over the Sd card data?