We sail by "the seat of our pants". I'm not always sure of the wind speed. We reef when it feels right. In gusty winds with big lulls in between we won't and just be ready for possible "knock downs". In a very steady wind, when the heal becomes uncomfortable we will reef. Also experience has shown that this boat will sail faster more upright, so if you are looking for speed, sometimes you sail faster with a reef. Because of the high freeboard and the narrow beam, putting the rails in the water is not an option on this boat.