Hi Terry,
There is one other affect that comes into play on the windward pointing angle. That affect is the change in relative wind speed and direction as boat speed increases in a given windspeed. If we are sailing to windward at 45 degrees to a true wind of 10 knots and the boat is at zero speed, the relative and true wind are coming across the deck at 45 degrees off the centerline of the boat. If we are making five knots boatspeed sailing a course at 45 degrees to the true wind, the relative wind is coming across the boat at 31 degrees not 45 degrees. Our own boatspeed has headed us by 14 degrees. If we are making 7.5 knots in a 10 knot breeze, the wind is coming across the boat at 26 degrees. If we are sailing to windward at 10 knots in a 10 knot breeze, the relative wind direction is coming across the deck at 23 degrees. Our boatspeed has bent the relative wind toward the bow 22 degrees. The point is that as boats go faster and faster sailing to windward, they are headed by their own boatspeed. A slow boat can sail higher or point higher than a fast boat. The fast boat will have a higher VMG to the windward mark and get there first but the slower boat will "point higher". The point is that pointing high is not the whole story when racing to windward.
Racing high performance catamarans is more complex, is more challenging, than racing monohulls.
Bill