maximize sail area
John, in your area (NB) you can use up to a 151% genoa without penalty.I'd use as much sail area that you can while keeping the heel angle around 15 to 20 deg. (you get past that and your rudder creates more drag due to weather helm) When you need to, vang down the main and sheet out (flatter while twisting off) move your genny cars aft a bit (flatter down low, twisted off up high) and bleed off some excess power. When it's too much, then think about reducing sail area. Your heel angle (on any boat) will let you know when your over powered. (smaller blown out sails can induce more heel angle than newer sails with the draft where it was designed to be)Have fun, go fast. Mark