I'm in the enviable position of having both a 2012 11" MBA (2.0gHz i7, 256GB SSD, 8GB RAM) and a base 13" MBA as well. Would anyone know if it's possible to switch the SSDs in these machines? In one way, the larger SSD would do me more good in the 13" than in the 11", but I'm not anxious to open the cases and make the switch only to find that one or both won't boot for some reason. Thanks in advance. Air on!