I watched several fleets on the Katatak tracker. It seems the F boats were usually doing 7-8 knots upwind and 8-10 downwind in the race they recorded. But as I watched the mono fleets, their speeds were not much slower, maybe 6-7 upwind and 8 downwind. What was the wind like for the race they put the gps on the F boats? Seems they should have been going faster than 10 downwind unless it was light air (10 or less?) and do you know what it was blowing for the mono's they recorded? Were they sailing in more wind or are the F boats not that much faster than the mono's?