Post #2 -- OK, he seems to be getting awfully close, especially at 5 frames per second. Camera is starting to lose focus. Cropping is all over the place. But I'm thinking: I'm shooting at 200mm, so everything's fine, camera will regain focus and he'll turn to the open water to head for a shrimp boat that had just docked at the seafood shop about 30 yards to my left. I'm not giving up on this, maybe there's a shot here as he turns.