Hey guys I just purchased a new rMBP and I came from a 2010 15" with an aftermarket installed SSD, I remember I had to turn off "put hard disks to sleep when possible" because there was no point with an SSD if I am correct right? Also I remember having to delete the sleepimage file/change hibernation code. I believe it freed up a bunch of space but is it needed for these newer machines? I mean why would they ask to put the hard disks to sleep when possible for an SSD, I would not want the HD to turn off if I am downloading something as well. Thanks guys!