Does anybody have any experience with these cards? I still have spinning hard disks in my Mac Pro 2010 which feels so ancient now and is bottlenecking my speed. I understand the 2010 MP doesn't have Sata 3 speeds (?) so I wanted to use PCI-e card with an SSD to get the full benefit of the SSD - I intend to run my OS and my apps from the PCI-e SSD drive and use the 4 bays purely for scratch disks and backups. Not sure if the solo X1 and X2 essentially the same except for a slight speed boost with the X2 (500mbs instead of 400 respectively) and whether or not my Mac will feel the benefit of that or not. I have also seen the OWC accelsior S which I'm guessing is the equivalent of the Apricorn X2? Is that right? If so, it seems a better deal here in the UK. I know some of these have issues with booting Windows but I prefer to boot windows in VMware fusion anyway as I only need it very occasionally to test web code in Internet Explorer so that doesn't bother me too much. But the last thing I want is a temperamental boot of my main OS.