I have a late 2010 MBP with an Apple installed 128G SSD. I am considering purchasing an early 2011 MBP with the standard 320G HHD. My plan would be to switch the drives...giving the older MBP/standard HHD to my son. Will the SSD in the 2011 MBP function the same as if it were Apple installed? In other words will the trim functionality work the same as if the SSD were factory installed? Or will the OS think the drive is like any other non-Apple installed SSD?