Hi I'm an amature sports photographer shooting with a D300s that has both SD and CF slots. I always shoot in RAW+JPEG when I shoot in low light. Does the camera it self have antyhing to do with speed limitations no matter how many MB/S I'm shooting? I'm currently using Extreme III (CF) or Lexar 95MB/S (SD). If the camera has something to do with the transfer speed to the memory card then would I be wasting my money buying a 160 MB/S or even a 510 MB/S CF card? Basically how do I get a faster transfer speed? Here is what I found running both cards. Extreme III and the Lexar SD are basically the same. * I get 15 continus shots before it stops * It takes 30 sec. for the images are fuly transferd to the card.