Question 1: Am I better off just installing a SSD drive and NOT making a Fusion drive version where the SSD is paired with the slower physical hard drive? I was lucky enough to recently get a midrange 2.3 quad core 2012 Mac Mini with an internal 1TB drive. I want to upgrade it with 16 GB RAM and add an extra SSD drive to the open bay and move the operating system over to the SSD drive for accelerated performance. By not fusing the hard drive with the SSD hopefully I won't have to deal with the issues some have had with the "trim enabler" during upgrades to new OS's using their hack of the Fusion drive with their own SSD and hard drive paired? Question 2: If I install a SSD and don't do a Fusion drive pairing does it matter if the system OS is loaded on the SSD in the bottom drive tray, where I assume most of the 2012 main drives are located when Apple sells the single drives and their own SSD that's paired with the Fusion drive?