Thanks for the reply guys.


WAFKT, I used my 50D with 100-400mm lens, and Hoya HD 77mm CP filter. I usually shoot the fast moving stuff in Av Priority mode with evaluative metering, there is no time to manually set the shutter speed and aperture, so I just set the aperture and let the camera decide on the shutter speed. Try and shoot with the sun behind me, which is not always possible. If the sun is too high up, I sometimes switch to spot metering, to get the plane nicely exposed, but in turn I get blown skies. And always shoot in RAW, that way you can make necessary adjustments in Photoshop and Camera Raw.