This weekend we had our spin down between 12-16 inches. It really helped with getting the extra air by billowing out more. Also in the light air I really pay attention to the jib. Making sure the tell tales are flying properly. Wild thinging the boat (and trapping/hiking out when the wind did come up) to keep the top hull out of the water as much as possible made a huge difference also. We did keep up with the I20's nicely, but then again it was the perfect wind for us and they could or used a little more. Getting the boat dialed in has been a blast!!!