I think #2 works great, we are always fortunate to have a bowl gym, so we don't have to deal with mom, dad, brother and sister matside. But if you enforce #3, it creates room in the place needed. Although it is a lot tougher to do with regular gyms, but still very doable with the threat of ejection. You could even block off row 1 of the bleachers for the next 2 or 3 matches coming up.