In the 3 times I did it there was always 15-20 km/h winds coming over my right shoulder (lovely tradewinds !) ,it was always in my mind to turn a bit left and ride those swells but they are not going where you want ! my tip is either the dead straight line or "high" which means to the right of the line . After the start you should point towards the northern peaks of oahu (you can just see it or clouds over the island ) and after about 20min you get ito wind swells and i suggest ride them parrallel to the rhumb (straight) line , at the end you have to deal with that sloppy tippy water at Portlock point and its best to be surfing down not fighting to come up at that point (when you are tired!) then you wrap around portlock point and have to deal with a half hour of dead flat water AND a headwind.
I have drawn a line in black (I know its pathetic though)