What is a good total distance to race in one day for an avarage mixed fleet and avarage winds at 8-15 kt. assuming an out and back or 3 point once around. that will not piss off the RC (assuming avarage drinkers) and will challenge the racers to extend their usual sail to more than a few hours. I can do the math but was wondering if there was any experience with how long is too long and how long is fun and challenging.