I have a Intel 320 Series 120GB SSD installed in the optibay of my MBP 13" 2012. I’m not sure, if I should enable TRIM via the TRIM Enable from http://www.groths.org/
I did enable it before on my 2011 MBP, but I not sure if I really needed to. I never had problems by enabling it. But I also doesn’t want to tinker with this, when I’m not entirely.
I know what TRIM does. And if you buy a Mac with a SSD from Apple, it is enabled by default.
Maybe I should use TRIM, but use another tool to enabling it. I don’t know.