Forgot to mention, that the wetted surface area of the F12 is 10% larger then the Laser-1 when both hulls are in the water and 20% less when only one hull in the water. Of course at a certain point the laser starts planing but this point is pretty far away on the upwind leg as the laser-1 crew can't acquire enough righting moment to get to the sail drive that allows planing.

Of course the F12 has much larger righting moment and when the winds start blowing the F12 will generate easily twice the amount of saildrive then the laser-1. That is where the F12 performance comes from.

Wouter