I have a spare 60gb SSD I'd like to plop into my 2012 Mini. I've done my homework searching through the forums, finding the dual drive kits available, and looking through the iFixit instructions. Nevertheless, I have a couple of questions. First, there seems to be a lot of debate about the SSD being the top or bottom drive. For example, there are people that absolutely insist the added SSD cannot be the second drive, but also the iFixit instructions explicitly say to leave the HDD where it is and to add the SSD as a second drive. I found many people talking about there personal experience, but it all conflicts. Even worse, I found posts from people saying that fusion drives coming directly from Apple come either way (SSD on top and SSD on bottom). Does anyone understand what is going on? Second, I don't want this to be a Fusion setup. I assume this won't happen automatically and so I don't have to do anything special? My intent is to install OS X on the SSD and to use the HDD for not much more than a time machine destination for the SSD.