Hey, do you guys know if SMC 1.6 with the 2011 i5 base 13" MBA kicks the fans up at all? I haven't done a firmware update probably since Lion, because I've heard the SMC firmware before the one that came out with PowerNap causes fans to run higher and more often. This would be a deal breaker for me because as it is, my MBA is quiet. And afaik, you can't revert SMC updates once they're done right? Please chime in, thx.