Hi Chris

I'm afraid it's a sad fact that, cat-rigged, the Mosquito just doesn't have enough sail-power to get the apparent working on downwind legs. We have tried and it may just be a possibility on flat water with more than 15 knots of breeze, but that combination almost never happens so we'll probably never find out. The fastest way to the bottom mark is to just keep the sail as far out as it will go and square to the wind. Slow and tedious but that doesn't mean there's nothing to do because there's plenty of ground to make up by gybing with the wind-shifts (and finding the wind-lines).

Enter the spinnaker - that's the whole reason I put a spinnaker on. I was always happy with the upwind performance of the cat-rigged Mozzie. Add the spinnaker and downwind legs are even better!