This makes it interesting to study and sail the course beforehand... ofcourse the RD makes sure the wind is never quite like shown on the map, but it makes sense to try and work out the optimal route.
As any sailor will know, it's about staying in the strong wind and keeping the angle where the boatspeed is maxed out on the polar. Here's an attempt to draw up a route with maximum speed. Sailing the course like this enables planing almost all the way round. Then there is the current to take into account. It might push you off the route. Yes, there's tactics in this route too. The reaching start is all about getting away into the open, rounding first.
I know they are all out there - right now - trying to get to know the wind and the current. Someone set up a webcam in the Blake Sea. Please.