Hi, I just got my WiiKey Fusion and upgraded it to firmware 1.2 and it works fine, except for one game. I thought i'd try to upgrade the Wii System menu to version 4.3, is it a good or bad idea? I currently run 4.1E. Anyone who has tried this already? I just want to make sure that my WiiKey Fusion will still work after an upgrade. Thanks in advance.