Right. For cruisers at night, I'd recommend watching the bearing drift of a contact the second you see it so if it's constant over time you can plan a course change early to get some drift.
For racers you're getting an early estimate of if you'll pass or need to duck. And when you have to duck, you can lock a proper course in and trim to it rather than the last second swings. Saves your speed and decreases the impact of the blanketing. (when you're racing
a full keel/furling main, you have to take anything you can get... though I'm usually more concerned with how cold the beer
is by the time we hit hte dock
And hey... Singapore
Bet you get a little traffic. Did you get to see the Volvo