Doc: I have a great example of that, of how the current effect changes with boatspeed. It was a Snipe race in light wind, and because the breeze was dying, the race committee decided to finish at the wing mark. The current was pushing up the course, against the wind. As the boats came down the final reach, they got slower and slower as the wind dropped, and compensated by pointing lower in order to hold bearing on the finish line. Boats were noticing the effects of the current and sailing lower to get some down-current distance “in the bank.” The problem was, if they squared up too much, the boat slowed down to the point that they stopped stemming the current. In the dying breeze, only one boat realized that they had to stay high enough to maintain speed. They didn’t try to put any “in the bank,” they just went for speed, and managed to sneak across the line before the breeze dropped out.