Just bought a new Macbook 13". Love it so far! However, I've been reading here about the aluminum body scratching easily, and would like to protect it with a skin. Not really caring much for those hardshell cases. I've narrowed my choices down to the Invisibleshield and the Phantom Skinz. Does anybody know the pros and cons of each? Does the Phantom Skinz offer similar protection to resisting scratches compared to the Invisibleshield?