Late reply, but yeah, you need to be on 5.3.2 or 5.4.0 to use pretty much anything we make right now. Brute-force decrypters might come at some point, but that time isn't now. If a kernel exploit isn't released, hopefully research into the Wii U userspace exploits will let save games become injectable and extractable. By then, my editors will likely have caught up, and I'll probably have had time to make an editor for XenobladeX.