If wind is what you say it will be and crew is light, stick with the blade and full main with shroud tension at 41 inners and outers on the Loos. Tight vang upwind (but don't forget to ease for the downwind or you will bend/break your boom). Use backstay to depower in big puffs. 41 is a little tight for 16 knots, but you will be happy if there are lots of puffs, and five crew is VERY light for that breeze. Good luck!
