Ketchup to verify, almost all flashing of drive requires the 360 to be opened correct?
Erm, yeah, you always need to open the case to flash the drive... You can make subsequent mods to the case/DVD drive so the necessary cables are accessible outside the case, but you will always have to open it at least initially to flash the drive.
Once opened you have to go about the process of actually flashing it too. It's not going to be magically flashed if the console is opened, if that's what you're implying.
And then question would it be safe to move game saves, from flashed 360 to live 360 and vise versa...
Along with your profile, gamesaves can be stored on a USB storage device. Again, there's no difference here between transferring profiles and gamesaves between two stock 360's. Undetectable.
...lets say im playing on flashed 360 using my live tag, and the game crashes or whatever, black screens, disc read errors etc, can it append a code saying a error occurred and upon signing into live bust my account?
If the game crashes, this usually means the entire console is locked up. It's not going to recognize this error and write it to your profile.
If it's a disc read error outside of a AP2.5 violation, it will not touch your profile. Many people have disc read errors all the time. Why would Microsoft want to log these? They indeed may be logged on a low level within the console's NAND, but it's speculation and not an issue here.
Even AP2.5 violations that occur are only written to the NAND of the console. Profiles are untouched.oh and a 2GB plenty to transfer profile back and fourth?
2GB is plenty of room for your Live profile and multiple gamesaves.OH and I cant add this to prior post but can even the new 360 s be flashed?
Firmware is being worked on for the Xbox 360 Slim, but there is none released as of now. There is no ETA for it either.
Check the Xbox-Scene homepage often, or Team Jungle's Twitter page for updates.