My Japanese N3DS currently has Luma 6.6 with the latest firmware, 11.2.0-35. Everything seems to work great, and I have already installed some cias, etc. While reading about the differences between emunand and sysnand, I have seen that you can somehow switch between the two on cfw. What is the benefit of this, how do I know if I am in sysnand or emunand, and how can I switch? I have heard that you can switch to avoid things being erased when entering the eShop, but that's about all I know. About the eShop, there are a couple of things I would like to download from there, and I was wondering if it is safe to access with a nnid, or if there is anything I need to do before I go to the eShop and download (like, switching, or unlinking a nnid for example). If so, how do I unlink my nnid? Also, if and when a new firmware comes out, will I be able to safely upgrade? Or is it too soon to tell? Thanks!