I have a few questions about shooting outdoor sporting events. When I set my white balance, weather it be custom or one of the preset ones in the camera, does my relationship to the sun or time of day affect my white balance choise? Another words say I choose the sunny white balance, does shooting into the sun, having the sun at my back or to either side affect what white balance choise i've made? Same goes with time of day, do I need to adjust my white balance as the time of day changes? I know having clouds, sun or shade will make a differance but if its sunny all day I shouldnt need to adjust the white balance right?
Another question I have is taking photos in the woods. What I am primarily shooting is offroad motorcycle racing. So there are times I will be in the woods shooting. Would it be a good idea to use my sb900 flash? If so do you have any reccomended settings to use? Like what shutter speeds will I be able to use with the flash being that the atv/motorcycles will be moving pretty quick.