I saw this asked in another post but not answered.... If I 'play' with the 770 softwarewise and stuff it, can I just 'reflash' back to a working unit? Can you 'play' so much that a reflash will not work?

I know it is a silly question but as a 'soon to own' 770'er I want to be able to play to my hearts content installing this that and whatever and know that if i render the unit inopperable i can flash it back to original at any time...

Does this make any sense?

Dan