Hey all. I know there are tons of threads about installing a third-party SSD in your MBP, but I can't seem to find answers to some specific questions pertaining to the more recent models of MBP. My questions are: 1. TRIM. What's the deal with that? The thread from the Anandtech SSD guy says that TRIM is only supported in SSD's that ship from Apple. However, that post is almost a year old. Is that still the case? If so, is TRIM no longer needed or something? I see a bunch of people buying Samgsung 830's and Crucial M4's. Do those have some sort of garbage collection that negates the need for TRIM? I'm looking for real, in-depth concrete answers please. 2. Location of the SSD. Optical bay caddy or location of the original mechanical hard drive? I'd prefer to put it in the optical bay caddy, but that raises some other questions. Will SATA 6G speeds be maximized? I have the recent 2012 model MBP (15"). If SATA 6G is available, does it depend on the caddy? Do I need to buy a specific SATA 6G caddy, or will any suffice? I can't seem to find any specifics listed in the caddies I see on eBay and Amazon. Finally, is it easy to set the MBP to boot from the optical bay SSD by default? I don't want to have to hold the option key every time I boot. I appreciate any help with these questions. I can't find the answers anywhere. Thanks!