Regain Steerage
In an important race, at or near the front of the fleet, you are almost certain to have company nearby. The most important thing on the helmsman's mind, as well as that of every sail trimmer, should be keeping or regaining control of the boat. The only way you'll do that is to get the boat back on it's feet and fast to avoid collision and not lose more time and distance (the round-up certainly isn't helping your speed around the course).Because the main is already dragging in the water, easing the sheet will likely do nothing although it will help later. Dump the boom vang (FAST) to spill pressure from the main. Next, call for a *big* ease on the spin sheet, the trimmer should try not to let the tail end go completely. Since there are probably no knots on the ends of the spinnaker sheet, if it runs, the only way to get it rigged again safely in the stronger breeze, is to douse the sail and reset, also a challenge to do safely without control of the sheet. Make sure that the afterguy does NOT get eased with the sheet, the goal is to regain and maintain control, the pole should not be at least off the headstay. If the spinnaker halyard didn't get all the way up, make sure it comes up all the way and fast when the boat comes back upright and before the sail fills. Since the boat rounded up in the wind, with the afterguy and the halyard tight, the spinnaker should not be drawing with just the sheet eased. If the jib is still up, there should be enough sail up to assist with turning the bow back downwind. Bear away slowly as the sails fill, DO NOT OVERSTEER. At this point, the helmsman needs to focus on not rounding down too hard and too fast. Regain control avoid an accidental jibe and reevaluate your sail selection. If this is still the right combination, then sheet in, surf away in control, and start thinking about your next jibe, sail change, mark rounding, or boat crossing. Suck the vang back in, your mainsheet trimmer needs it, but keep someone ready to dump it again if the need comes up again suddenly.