I've just installed a 256GB Samsung 470 SSD in my 13" 2.7ghz MBP. I also have an optibay with the original HDD installed. I never setup TRIM. I just installed the SSD and installed Lion. (all my software is all installed, its full set) Do I need to install TRIM using this version and these instructions: http://digitaldj.net/2011/07/21/trim-enabler-for-lion/ Help is appreciated, don't want to run into any problems.