I have two SSDs in the MacBook, and I cloned one to the other. Then I just booted to the opposite SSD and tested it.One question: How did you speed test using AJA? It doesn't let me select the volume to test. I just looked it up and somewhere it said you cannot test boot drives? How did you do this?
I did this to find out if I have SATA III speeds in both the main HDD bay and the optical bay SSD. Turns out, I do!