I used the Twilight hack on my system which was 3.2 so had no problems at all with it. I also modded a friend's Wii who was 3.3, same thing no issues. I am going to do the same to my other friends but he has version 3.4 so what level should I downgrade it to? Should I go to 3.3 or 3.2 then do the safe upgrade? Also do I need to worry about any auto updates that might mess up the systems?