I'm considering upgrading to an internal SSD for my MBP and I'm intrigued by this whopping 960GB drive. However, while it claims to offer the "highest levels of capacity and speed," the specs show it running at 254mps, which is hardly the "highest capacity for speed." 512GB drives like this one run at 520mps, and so do plenty of others. But in terms of real-life use, what's the tangible difference? Are we talking an indiscernible fraction of a second, or are we talking about significant lag? Like most MBP users, 90% of what I do is ordinary stuff--Firefox, iPhoto, Word. But I do use InDesign, Photoshop, and other processor-heavy apps sometimes. I'm just tired of my 5400-speed hard drive (which has been post-crash replaced once already) and that spinning ball of delay.