I got a deal on an OCZ Agility 3 SSD just over a year ago, and I put it in my 2010 13" MBP. At first it was really fast, with <15 second boot times and one bounce app opening. Over about 6 months it slowed right down, to the point where it wasn't noticeably faster than a normal hard drive. I reinstalled the OS, and this brought most of the speed back, but the effect only lasts a couple of months and I need to keep reinstalling. So... I've arrived at the conclusion that I should enable TRIM, but here is my question: if I use a TRIM enabler, will I start seeing speed improvements just like that? Or should I reinstall the OS, or take any other measures first (like zeroing out the drive), before enabling TRIM to maximise the benefit? Thanks.