This is what Jacques had to say on the GPS Team Challenge session post 'forum'
34 Knots in the Gybe, that is near my peak! I feel partly ashamed and partly in awe.
Did only one attempt for the team. When almost everybody was on the beach waiting for the wind to increase i was sailing upwind and nobody was starting a run.
Managed to start with 25 knots sailing upwind the wall and in the corner i accelerate up to 34 knots in the gybe, the way back was downwind and speeds where 36 knots, this was good enough for an @500 average of 28,27 knots. As you can see there are many ways to get a nice alpha average.