I ordered a used 2011 MBP on eBay, and it is set to arrive Tuesday. My plan is to take the 240Gb SSD from my 2009 Mac Mini to use in the MBP. The drive has 10.10.3 on it. My question then is this: Will I have to reinstall OS X, or if I can just swap the drive over? It will be such a hassle to move everything, swap the drive, reinstall OS X, and then move all my files and reinstall my apps again. Any reason just swapping the drive wouldn't work or is an inferior option? Thanks in advance!