2. Learn your boat's optimal weight
Most dinghies and planing boats need to be kept light, while heavy keelboats don't mind being heavy, especially when it's windy. Ask around and learn what your boat prefers. The top teams on planing boats bring a few bottles of water per sailor, a sandwich, and an energy bar per person, at most. They don't bring ice, coolers, spares, gear bags, or excessive tools. By being light, you can plane more quickly downwind, and the gains are huge, especially in marginal conditions. In heavy boats that like weight, top sailors bring extra water. The extra weight lowers the boat in the water, creates a longer waterline, and allows for faster speeds. In these boats, it's all about momentum. Get it rolling, and keep it rolling.