I have had my D2X for about 11 months and I shoot birds more than anything. I still have no real idea what I want to use for birds in flight. I have been using group dynamic - with group 2 but wonder what others are using now. I looked at old posts and know a few people who are shooting differently than they posted in 2005 or 06. So, birds in flight - which do you use dynamic (2nd from bottom) or group dynamic (2nd from top) when shooting birds in flight? Is it hit or miss - what should I try today (like me) or have you actually made tests. I suppose some may use single area, but when I am shooting the birds are fairly small compared to the frame and I find it hard to keep them in the focus area. Any thoughts are appreciated. After 11 months with my D2X I still feel like a rookie using it.