I just want to make sure I am understanding this correctly. If I am using external strobes, I need to set the Scene Mode to External Flash (either manual or automatic). So if I am diving, let's say a local quarry with low vis, and if I want to use the Sea mode with a preset White Balance for Lakes/Rivers, I cannot use the strobes. I would have to detach the stobes and the fiber optic sensor and use the built in flash. But my best quality picture would be to use the stobes with the proper Scene Mode. Am I close to understanding this correctly. Thanks for the help.