If you only want 13k bleachers, but have 18k bleachers, I don't think this matters. Whether you have 13k or 18k in bleachers, you'll still fill the same number of lower tier, courtside seats, and luxury boxes. In other words, I think the occupancy of other types of seats like lower tier is independent of the number of bleacher seats. My understanding is that the occupancy of each seat type is determined by its price, fan interest, and number of that type of seat (and becomes more inefficient with more seats, hence the 'soft cap'), but _not_ the number of other types of seats. At least, that is what I have observed....