Seems I never posted my tabulated results in that linked thread, or at least, I can't find the table. But I'd slightly disagree that the camera is limiting after ~50 Mb/s for the 7D. True, the difference going from a 60 Mb/s card to a 90 Mb/s card is not huge, but it's there - a few extra frames in a long, continuous burst and a second or so faster recovery after a burst. I'll post my results here, they pretty much agree with Brant's in the other thread (and you can see the need for updated firmware, too). Even on a relatively slow camera like the 5DII (3.9 fps) the 90 MB/s card makes a difference over the 60 Mb/s card.