I've read the great posts about using ND filters in manual mode -- setting shutter speed to 2x frame rate, then using filter to get ev ~ 0. I am going to shoot a rowing race tomorrow in bright sunshine and obviously over water. I will be shooting into, away from and sideways to the morning sun. I fear if I set up for one of these lighting scenarios, when I turn I will over or underexpose. My question is would it do any good to use the right ND filter to slow the shutter to about 2x framerate BUT then shoot in Automatic? That way auto should choose a shutter and ISO combo that work for much of the time, but then adjust for the other scenarios. Make sense? Thoughts? Advice?