Is there any reasons why I should not upgrade? Here are my current specs. Wii system 3.3u Cios rev 12 latest preloader latest Usb GX loader ALL games are on HDD, we do not use discs anymore. We have a chipped wii if that info is needed. What benefits/cons would there be in going to the latest system menu? What about the Cios? I just acquired TMNT but can not get it to load.