Hi - Right now, I'm waiting for my mid-2012 MacBook Pro's hard drive to clone onto a Samsung 850 EVO SSD (using Carbon Copy Cloner). A couple questions: Can someone elaborate a little bit for me on TRIM (specifically, do I need it? From what I've read so far, it sounds almost essential to preserve the space and speed of the SSD)? If so, should that be the next thing I do (install TRIM right after cloning operation is complete)? Finally, regardless of the above answers, is the next major step to use Disk Utility to switch the boot-up disk to the SSD, then shut everything down, make the actual hardware switch, and simply power back on? First time hard driver switcher here, so just trying to make sure I'm understanding things as I go. Thank you.