I need to get a new CF card and was wondering what you guys think about them - I have 4g Ultra II and shoot with my 40D - I was wondering about the difference in the Ultra and Extreme - I shoot alot of birds and use fast burst at 6/fps - do you have any suggestions?? I think I want to get a 8g or 16 g card? I always shoot in Raw and will probably change bodies in the next month or so to a 7d or Mark IV


