The first time we were season-ticket holders, but not cougar club. So we only had access to four.We have five total in our family, but one was a five-year-old. We just had him sit on our laps, and I bought a cheap single random ticket locally on craigslist to get him in.
Second time we were cougar club members, but only had access to four because of the level we were at. My wife's parents had a higher priority that allowed six, so we just bought it through them since they were not going.
Not sure if that helps, but that has been our only experience so far.